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Finding the Fourth Proportional to 60,590.52, 83,438.49 and 47,139.12

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Solution

The fourth proportional to 60,590.52, 83,438.49 and 47,139.12 is: 64,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,590.52 : 83,438.49 = 47,139.12 : x
  2. Step 2: Convert to fraction form
    60,590.52/83,438.49 = 47,139.12/x
  3. Step 3: Cross multiply
    60,590.52x = 83,438.49 × 47,139.12
  4. Step 4: Simplify right side
    60,590.52x = 3,933,216,992.73
  5. Step 5: Solve for x
    x = 3,933,216,992.73/60,590.52
  6. Step 6: Final answer
    x = 64,914.73

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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.