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Finding the Fourth Proportional to 25,934.60, 38,901.90 and 19,713.80

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Solution

The fourth proportional to 25,934.60, 38,901.90 and 19,713.80 is: 29,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,934.60 : 38,901.90 = 19,713.80 : x
  2. Step 2: Convert to fraction form
    25,934.60/38,901.90 = 19,713.80/x
  3. Step 3: Cross multiply
    25,934.60x = 38,901.90 × 19,713.80
  4. Step 4: Simplify right side
    25,934.60x = 766,904,276.22
  5. Step 5: Solve for x
    x = 766,904,276.22/25,934.60
  6. Step 6: Final answer
    x = 29,570.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.