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Finding the Fourth Proportional to 27,490.79, 37,937.16 and 14,915.54

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Solution

The fourth proportional to 27,490.79, 37,937.16 and 14,915.54 is: 20,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,490.79 : 37,937.16 = 14,915.54 : x
  2. Step 2: Convert to fraction form
    27,490.79/37,937.16 = 14,915.54/x
  3. Step 3: Cross multiply
    27,490.79x = 37,937.16 × 14,915.54
  4. Step 4: Simplify right side
    27,490.79x = 565,853,322.31
  5. Step 5: Solve for x
    x = 565,853,322.31/27,490.79
  6. Step 6: Final answer
    x = 20,583.38

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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.