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Finding the Fourth Proportional to 8,875.92, 12,241.80 and 6,624.52

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Solution

The fourth proportional to 8,875.92, 12,241.80 and 6,624.52 is: 9,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.92 : 12,241.80 = 6,624.52 : x
  2. Step 2: Convert to fraction form
    8,875.92/12,241.80 = 6,624.52/x
  3. Step 3: Cross multiply
    8,875.92x = 12,241.80 × 6,624.52
  4. Step 4: Simplify right side
    8,875.92x = 81,096,048.94
  5. Step 5: Solve for x
    x = 81,096,048.94/8,875.92
  6. Step 6: Final answer
    x = 9,136.64

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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.