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Finding the Fourth Proportional to 62,966.83, 86,900.38 and 47,023.60

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Solution

The fourth proportional to 62,966.83, 86,900.38 and 47,023.60 is: 64,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,966.83 : 86,900.38 = 47,023.60 : x
  2. Step 2: Convert to fraction form
    62,966.83/86,900.38 = 47,023.60/x
  3. Step 3: Cross multiply
    62,966.83x = 86,900.38 × 47,023.60
  4. Step 4: Simplify right side
    62,966.83x = 4,086,368,708.97
  5. Step 5: Solve for x
    x = 4,086,368,708.97/62,966.83
  6. Step 6: Final answer
    x = 64,897.16

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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.