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Finding the Fourth Proportional to 67,643.76, 101,465.55 and 27,135.57

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Solution

The fourth proportional to 67,643.76, 101,465.55 and 27,135.57 is: 40,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,643.76 : 101,465.55 = 27,135.57 : x
  2. Step 2: Convert to fraction form
    67,643.76/101,465.55 = 27,135.57/x
  3. Step 3: Cross multiply
    67,643.76x = 101,465.55 × 27,135.57
  4. Step 4: Simplify right side
    67,643.76x = 2,753,325,534.61
  5. Step 5: Solve for x
    x = 2,753,325,534.61/67,643.76
  6. Step 6: Final answer
    x = 40,703.32

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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.