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Finding the Fourth Proportional to 25,404.60, 38,106.90 and 17,110.20

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Solution

The fourth proportional to 25,404.60, 38,106.90 and 17,110.20 is: 25,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.60 : 38,106.90 = 17,110.20 : x
  2. Step 2: Convert to fraction form
    25,404.60/38,106.90 = 17,110.20/x
  3. Step 3: Cross multiply
    25,404.60x = 38,106.90 × 17,110.20
  4. Step 4: Simplify right side
    25,404.60x = 652,016,680.38
  5. Step 5: Solve for x
    x = 652,016,680.38/25,404.60
  6. Step 6: Final answer
    x = 25,665.30

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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.