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Finding the Fourth Proportional to 7,592.10, 11,388.15 and 7,130.40

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Solution

The fourth proportional to 7,592.10, 11,388.15 and 7,130.40 is: 10,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,592.10 : 11,388.15 = 7,130.40 : x
  2. Step 2: Convert to fraction form
    7,592.10/11,388.15 = 7,130.40/x
  3. Step 3: Cross multiply
    7,592.10x = 11,388.15 × 7,130.40
  4. Step 4: Simplify right side
    7,592.10x = 81,202,064.76
  5. Step 5: Solve for x
    x = 81,202,064.76/7,592.10
  6. Step 6: Final answer
    x = 10,695.60

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.