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Finding the Fourth Proportional to 29,363.78, 40,522.04 and 15,935.03

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Solution

The fourth proportional to 29,363.78, 40,522.04 and 15,935.03 is: 21,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,363.78 : 40,522.04 = 15,935.03 : x
  2. Step 2: Convert to fraction form
    29,363.78/40,522.04 = 15,935.03/x
  3. Step 3: Cross multiply
    29,363.78x = 40,522.04 × 15,935.03
  4. Step 4: Simplify right side
    29,363.78x = 645,719,883.22
  5. Step 5: Solve for x
    x = 645,719,883.22/29,363.78
  6. Step 6: Final answer
    x = 21,990.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.