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Finding the Fourth Proportional to 67,695.80, 101,543.70 and 17,772.60

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Solution

The fourth proportional to 67,695.80, 101,543.70 and 17,772.60 is: 26,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,695.80 : 101,543.70 = 17,772.60 : x
  2. Step 2: Convert to fraction form
    67,695.80/101,543.70 = 17,772.60/x
  3. Step 3: Cross multiply
    67,695.80x = 101,543.70 × 17,772.60
  4. Step 4: Simplify right side
    67,695.80x = 1,804,695,562.62
  5. Step 5: Solve for x
    x = 1,804,695,562.62/67,695.80
  6. Step 6: Final answer
    x = 26,658.90

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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.