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Finding the Fourth Proportional to 8,875.74, 12,248.57 and 4,896.86

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Solution

The fourth proportional to 8,875.74, 12,248.57 and 4,896.86 is: 6,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.74 : 12,248.57 = 4,896.86 : x
  2. Step 2: Convert to fraction form
    8,875.74/12,248.57 = 4,896.86/x
  3. Step 3: Cross multiply
    8,875.74x = 12,248.57 × 4,896.86
  4. Step 4: Simplify right side
    8,875.74x = 59,979,446.76
  5. Step 5: Solve for x
    x = 59,979,446.76/8,875.74
  6. Step 6: Final answer
    x = 6,757.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.