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Finding the Fourth Proportional to 67,060.60, 100,590.88 and 17,140.80

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Solution

The fourth proportional to 67,060.60, 100,590.88 and 17,140.80 is: 25,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,060.60 : 100,590.88 = 17,140.80 : x
  2. Step 2: Convert to fraction form
    67,060.60/100,590.88 = 17,140.80/x
  3. Step 3: Cross multiply
    67,060.60x = 100,590.88 × 17,140.80
  4. Step 4: Simplify right side
    67,060.60x = 1,724,208,155.90
  5. Step 5: Solve for x
    x = 1,724,208,155.90/67,060.60
  6. Step 6: Final answer
    x = 25,711.19

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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.