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Finding the Fourth Proportional to 62,171.52, 85,771 and 43,319.58

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Solution

The fourth proportional to 62,171.52, 85,771 and 43,319.58 is: 59,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,171.52 : 85,771 = 43,319.58 : x
  2. Step 2: Convert to fraction form
    62,171.52/85,771 = 43,319.58/x
  3. Step 3: Cross multiply
    62,171.52x = 85,771 × 43,319.58
  4. Step 4: Simplify right side
    62,171.52x = 3,715,563,696.18
  5. Step 5: Solve for x
    x = 3,715,563,696.18/62,171.52
  6. Step 6: Final answer
    x = 59,763.11

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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.