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Finding the Fourth Proportional to 66,918.95, 92,354.07 and 36,710.16

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Solution

The fourth proportional to 66,918.95, 92,354.07 and 36,710.16 is: 50,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,918.95 : 92,354.07 = 36,710.16 : x
  2. Step 2: Convert to fraction form
    66,918.95/92,354.07 = 36,710.16/x
  3. Step 3: Cross multiply
    66,918.95x = 92,354.07 × 36,710.16
  4. Step 4: Simplify right side
    66,918.95x = 3,390,332,778.13
  5. Step 5: Solve for x
    x = 3,390,332,778.13/66,918.95
  6. Step 6: Final answer
    x = 50,663.27

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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.