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Finding the Fourth Proportional to 9,869.01, 13,610.75 and 8,793.74

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Solution

The fourth proportional to 9,869.01, 13,610.75 and 8,793.74 is: 12,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.01 : 13,610.75 = 8,793.74 : x
  2. Step 2: Convert to fraction form
    9,869.01/13,610.75 = 8,793.74/x
  3. Step 3: Cross multiply
    9,869.01x = 13,610.75 × 8,793.74
  4. Step 4: Simplify right side
    9,869.01x = 119,689,284.68
  5. Step 5: Solve for x
    x = 119,689,284.68/9,869.01
  6. Step 6: Final answer
    x = 12,127.79

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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.