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Finding the Fourth Proportional to 25,655.75, 38,478.14 and 14,974.99

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Solution

The fourth proportional to 25,655.75, 38,478.14 and 14,974.99 is: 22,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.75 : 38,478.14 = 14,974.99 : x
  2. Step 2: Convert to fraction form
    25,655.75/38,478.14 = 14,974.99/x
  3. Step 3: Cross multiply
    25,655.75x = 38,478.14 × 14,974.99
  4. Step 4: Simplify right side
    25,655.75x = 576,209,863.24
  5. Step 5: Solve for x
    x = 576,209,863.24/25,655.75
  6. Step 6: Final answer
    x = 22,459.28

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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.