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Finding the Fourth Proportional to 61,996.60, 93,038.10 and 39,863.80

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Solution

The fourth proportional to 61,996.60, 93,038.10 and 39,863.80 is: 59,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,996.60 : 93,038.10 = 39,863.80 : x
  2. Step 2: Convert to fraction form
    61,996.60/93,038.10 = 39,863.80/x
  3. Step 3: Cross multiply
    61,996.60x = 93,038.10 × 39,863.80
  4. Step 4: Simplify right side
    61,996.60x = 3,708,852,210.78
  5. Step 5: Solve for x
    x = 3,708,852,210.78/61,996.60
  6. Step 6: Final answer
    x = 59,823.48

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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.