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Finding the Fourth Proportional to 67,886.76, 101,639.76 and 51,194.28

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Solution

The fourth proportional to 67,886.76, 101,639.76 and 51,194.28 is: 76,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,886.76 : 101,639.76 = 51,194.28 : x
  2. Step 2: Convert to fraction form
    67,886.76/101,639.76 = 51,194.28/x
  3. Step 3: Cross multiply
    67,886.76x = 101,639.76 × 51,194.28
  4. Step 4: Simplify right side
    67,886.76x = 5,203,374,332.57
  5. Step 5: Solve for x
    x = 5,203,374,332.57/67,886.76
  6. Step 6: Final answer
    x = 76,647.85

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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.