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Finding the Fourth Proportional to 61,655.34, 85,053.03 and 37,449.87

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Solution

The fourth proportional to 61,655.34, 85,053.03 and 37,449.87 is: 51,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,655.34 : 85,053.03 = 37,449.87 : x
  2. Step 2: Convert to fraction form
    61,655.34/85,053.03 = 37,449.87/x
  3. Step 3: Cross multiply
    61,655.34x = 85,053.03 × 37,449.87
  4. Step 4: Simplify right side
    61,655.34x = 3,185,224,916.61
  5. Step 5: Solve for x
    x = 3,185,224,916.61/61,655.34
  6. Step 6: Final answer
    x = 51,661.78

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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.