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Finding the Fourth Proportional to 5,159.70, 7,132.05 and 4,751.46

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Solution

The fourth proportional to 5,159.70, 7,132.05 and 4,751.46 is: 6,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.70 : 7,132.05 = 4,751.46 : x
  2. Step 2: Convert to fraction form
    5,159.70/7,132.05 = 4,751.46/x
  3. Step 3: Cross multiply
    5,159.70x = 7,132.05 × 4,751.46
  4. Step 4: Simplify right side
    5,159.70x = 33,887,650.29
  5. Step 5: Solve for x
    x = 33,887,650.29/5,159.70
  6. Step 6: Final answer
    x = 6,567.76

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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.