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Finding the Fourth Proportional to 5,116.70, 7,675.05 and 4,752.20

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Solution

The fourth proportional to 5,116.70, 7,675.05 and 4,752.20 is: 7,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.70 : 7,675.05 = 4,752.20 : x
  2. Step 2: Convert to fraction form
    5,116.70/7,675.05 = 4,752.20/x
  3. Step 3: Cross multiply
    5,116.70x = 7,675.05 × 4,752.20
  4. Step 4: Simplify right side
    5,116.70x = 36,473,372.61
  5. Step 5: Solve for x
    x = 36,473,372.61/5,116.70
  6. Step 6: Final answer
    x = 7,128.30

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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.