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Finding the Fourth Proportional to 25,807.87, 38,711.71 and 17,040.70

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Solution

The fourth proportional to 25,807.87, 38,711.71 and 17,040.70 is: 25,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,807.87 : 38,711.71 = 17,040.70 : x
  2. Step 2: Convert to fraction form
    25,807.87/38,711.71 = 17,040.70/x
  3. Step 3: Cross multiply
    25,807.87x = 38,711.71 × 17,040.70
  4. Step 4: Simplify right side
    25,807.87x = 659,674,636.60
  5. Step 5: Solve for x
    x = 659,674,636.60/25,807.87
  6. Step 6: Final answer
    x = 25,560.99

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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.