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Finding the Fourth Proportional to 62,985.98, 86,918.87 and 34,304.99

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Solution

The fourth proportional to 62,985.98, 86,918.87 and 34,304.99 is: 47,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,985.98 : 86,918.87 = 34,304.99 : x
  2. Step 2: Convert to fraction form
    62,985.98/86,918.87 = 34,304.99/x
  3. Step 3: Cross multiply
    62,985.98x = 86,918.87 × 34,304.99
  4. Step 4: Simplify right side
    62,985.98x = 2,981,750,360.04
  5. Step 5: Solve for x
    x = 2,981,750,360.04/62,985.98
  6. Step 6: Final answer
    x = 47,339.91

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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.