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Finding the Fourth Proportional to 5,074.40, 7,613.04 and 4,702.88

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Solution

The fourth proportional to 5,074.40, 7,613.04 and 4,702.88 is: 7,055.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.40 : 7,613.04 = 4,702.88 : x
  2. Step 2: Convert to fraction form
    5,074.40/7,613.04 = 4,702.88/x
  3. Step 3: Cross multiply
    5,074.40x = 7,613.04 × 4,702.88
  4. Step 4: Simplify right side
    5,074.40x = 35,803,213.56
  5. Step 5: Solve for x
    x = 35,803,213.56/5,074.40
  6. Step 6: Final answer
    x = 7,055.65

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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.