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Finding the Fourth Proportional to 62,679.59, 86,503.75 and 35,816.90

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Solution

The fourth proportional to 62,679.59, 86,503.75 and 35,816.90 is: 49,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,679.59 : 86,503.75 = 35,816.90 : x
  2. Step 2: Convert to fraction form
    62,679.59/86,503.75 = 35,816.90/x
  3. Step 3: Cross multiply
    62,679.59x = 86,503.75 × 35,816.90
  4. Step 4: Simplify right side
    62,679.59x = 3,098,296,127.90
  5. Step 5: Solve for x
    x = 3,098,296,127.90/62,679.59
  6. Step 6: Final answer
    x = 49,430.70

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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.