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Finding the Fourth Proportional to 25,598.70, 38,437.65 and 13,934.70

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Solution

The fourth proportional to 25,598.70, 38,437.65 and 13,934.70 is: 20,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,598.70 : 38,437.65 = 13,934.70 : x
  2. Step 2: Convert to fraction form
    25,598.70/38,437.65 = 13,934.70/x
  3. Step 3: Cross multiply
    25,598.70x = 38,437.65 × 13,934.70
  4. Step 4: Simplify right side
    25,598.70x = 535,617,121.46
  5. Step 5: Solve for x
    x = 535,617,121.46/25,598.70
  6. Step 6: Final answer
    x = 20,923.61

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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.