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Finding the Fourth Proportional to 8,501.75, 12,752.52 and 2,658.21

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Solution

The fourth proportional to 8,501.75, 12,752.52 and 2,658.21 is: 3,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.75 : 12,752.52 = 2,658.21 : x
  2. Step 2: Convert to fraction form
    8,501.75/12,752.52 = 2,658.21/x
  3. Step 3: Cross multiply
    8,501.75x = 12,752.52 × 2,658.21
  4. Step 4: Simplify right side
    8,501.75x = 33,898,876.19
  5. Step 5: Solve for x
    x = 33,898,876.19/8,501.75
  6. Step 6: Final answer
    x = 3,987.28

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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.