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Finding the Fourth Proportional to 8,983.59, 13,505.79 and 7,240.83

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Solution

The fourth proportional to 8,983.59, 13,505.79 and 7,240.83 is: 10,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.59 : 13,505.79 = 7,240.83 : x
  2. Step 2: Convert to fraction form
    8,983.59/13,505.79 = 7,240.83/x
  3. Step 3: Cross multiply
    8,983.59x = 13,505.79 × 7,240.83
  4. Step 4: Simplify right side
    8,983.59x = 97,793,129.41
  5. Step 5: Solve for x
    x = 97,793,129.41/8,983.59
  6. Step 6: Final answer
    x = 10,885.75

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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.