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Finding the Fourth Proportional to 25,065.52, 34,542.80 and 17,979.68

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Solution

The fourth proportional to 25,065.52, 34,542.80 and 17,979.68 is: 24,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,065.52 : 34,542.80 = 17,979.68 : x
  2. Step 2: Convert to fraction form
    25,065.52/34,542.80 = 17,979.68/x
  3. Step 3: Cross multiply
    25,065.52x = 34,542.80 × 17,979.68
  4. Step 4: Simplify right side
    25,065.52x = 621,068,490.30
  5. Step 5: Solve for x
    x = 621,068,490.30/25,065.52
  6. Step 6: Final answer
    x = 24,777.80

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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.