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Finding the Fourth Proportional to 7,411.10, 11,116.65 and 7,346.30

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Solution

The fourth proportional to 7,411.10, 11,116.65 and 7,346.30 is: 11,019.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.10 : 11,116.65 = 7,346.30 : x
  2. Step 2: Convert to fraction form
    7,411.10/11,116.65 = 7,346.30/x
  3. Step 3: Cross multiply
    7,411.10x = 11,116.65 × 7,346.30
  4. Step 4: Simplify right side
    7,411.10x = 81,666,245.90
  5. Step 5: Solve for x
    x = 81,666,245.90/7,411.10
  6. Step 6: Final answer
    x = 11,019.45

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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.