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Finding the Fourth Proportional to 8,658.66, 11,948.65 and 5,473.69

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Solution

The fourth proportional to 8,658.66, 11,948.65 and 5,473.69 is: 7,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.66 : 11,948.65 = 5,473.69 : x
  2. Step 2: Convert to fraction form
    8,658.66/11,948.65 = 5,473.69/x
  3. Step 3: Cross multiply
    8,658.66x = 11,948.65 × 5,473.69
  4. Step 4: Simplify right side
    8,658.66x = 65,403,206.02
  5. Step 5: Solve for x
    x = 65,403,206.02/8,658.66
  6. Step 6: Final answer
    x = 7,553.50

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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.