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Finding the Fourth Proportional to 17,116.70, 25,675.05 and 16,987.10

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Solution

The fourth proportional to 17,116.70, 25,675.05 and 16,987.10 is: 25,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,116.70 : 25,675.05 = 16,987.10 : x
  2. Step 2: Convert to fraction form
    17,116.70/25,675.05 = 16,987.10/x
  3. Step 3: Cross multiply
    17,116.70x = 25,675.05 × 16,987.10
  4. Step 4: Simplify right side
    17,116.70x = 436,144,641.86
  5. Step 5: Solve for x
    x = 436,144,641.86/17,116.70
  6. Step 6: Final answer
    x = 25,480.65

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Double scale
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Similar ratio
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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.