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Finding the Fourth Proportional to 40,502.88, 55,905.84 and 25,607.52

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Solution

The fourth proportional to 40,502.88, 55,905.84 and 25,607.52 is: 35,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,502.88 : 55,905.84 = 25,607.52 : x
  2. Step 2: Convert to fraction form
    40,502.88/55,905.84 = 25,607.52/x
  3. Step 3: Cross multiply
    40,502.88x = 55,905.84 × 25,607.52
  4. Step 4: Simplify right side
    40,502.88x = 1,431,609,915.92
  5. Step 5: Solve for x
    x = 1,431,609,915.92/40,502.88
  6. Step 6: Final answer
    x = 35,345.88

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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.