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Finding the Fourth Proportional to 67,605.64, 101,399.46 and 17,681.76

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Solution

The fourth proportional to 67,605.64, 101,399.46 and 17,681.76 is: 26,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,605.64 : 101,399.46 = 17,681.76 : x
  2. Step 2: Convert to fraction form
    67,605.64/101,399.46 = 17,681.76/x
  3. Step 3: Cross multiply
    67,605.64x = 101,399.46 × 17,681.76
  4. Step 4: Simplify right side
    67,605.64x = 1,792,920,915.85
  5. Step 5: Solve for x
    x = 1,792,920,915.85/67,605.64
  6. Step 6: Final answer
    x = 26,520.29

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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.