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Finding the Fourth Proportional to 7,415.04, 11,122.52 and 1,943.04

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Solution

The fourth proportional to 7,415.04, 11,122.52 and 1,943.04 is: 2,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.04 : 11,122.52 = 1,943.04 : x
  2. Step 2: Convert to fraction form
    7,415.04/11,122.52 = 1,943.04/x
  3. Step 3: Cross multiply
    7,415.04x = 11,122.52 × 1,943.04
  4. Step 4: Simplify right side
    7,415.04x = 21,611,501.26
  5. Step 5: Solve for x
    x = 21,611,501.26/7,415.04
  6. Step 6: Final answer
    x = 2,914.55

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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.