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Finding the Fourth Proportional to 58,356.48, 80,565.12 and 38,542.08

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Solution

The fourth proportional to 58,356.48, 80,565.12 and 38,542.08 is: 53,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,356.48 : 80,565.12 = 38,542.08 : x
  2. Step 2: Convert to fraction form
    58,356.48/80,565.12 = 38,542.08/x
  3. Step 3: Cross multiply
    58,356.48x = 80,565.12 × 38,542.08
  4. Step 4: Simplify right side
    58,356.48x = 3,105,147,300.25
  5. Step 5: Solve for x
    x = 3,105,147,300.25/58,356.48
  6. Step 6: Final answer
    x = 53,209.98

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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.