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Finding the Fourth Proportional to 8,001.70, 11,986.35 and 4,534.90

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Solution

The fourth proportional to 8,001.70, 11,986.35 and 4,534.90 is: 6,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.70 : 11,986.35 = 4,534.90 : x
  2. Step 2: Convert to fraction form
    8,001.70/11,986.35 = 4,534.90/x
  3. Step 3: Cross multiply
    8,001.70x = 11,986.35 × 4,534.90
  4. Step 4: Simplify right side
    8,001.70x = 54,356,898.62
  5. Step 5: Solve for x
    x = 54,356,898.62/8,001.70
  6. Step 6: Final answer
    x = 6,793.17

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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.