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Finding the Fourth Proportional to 85,230.28, 127,863.88 and 32,639.77

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Solution

The fourth proportional to 85,230.28, 127,863.88 and 32,639.77 is: 48,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230.28 : 127,863.88 = 32,639.77 : x
  2. Step 2: Convert to fraction form
    85,230.28/127,863.88 = 32,639.77/x
  3. Step 3: Cross multiply
    85,230.28x = 127,863.88 × 32,639.77
  4. Step 4: Simplify right side
    85,230.28x = 4,173,447,634.51
  5. Step 5: Solve for x
    x = 4,173,447,634.51/85,230.28
  6. Step 6: Final answer
    x = 48,966.72

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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.