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Finding the Fourth Proportional to 8,877.96, 12,253.08 and 8,484.30

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Solution

The fourth proportional to 8,877.96, 12,253.08 and 8,484.30 is: 11,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.96 : 12,253.08 = 8,484.30 : x
  2. Step 2: Convert to fraction form
    8,877.96/12,253.08 = 8,484.30/x
  3. Step 3: Cross multiply
    8,877.96x = 12,253.08 × 8,484.30
  4. Step 4: Simplify right side
    8,877.96x = 103,958,806.64
  5. Step 5: Solve for x
    x = 103,958,806.64/8,877.96
  6. Step 6: Final answer
    x = 11,709.76

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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.