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Finding the Fourth Proportional to 5,310.16, 7,952.88 and 5,125.60

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Solution

The fourth proportional to 5,310.16, 7,952.88 and 5,125.60 is: 7,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.16 : 7,952.88 = 5,125.60 : x
  2. Step 2: Convert to fraction form
    5,310.16/7,952.88 = 5,125.60/x
  3. Step 3: Cross multiply
    5,310.16x = 7,952.88 × 5,125.60
  4. Step 4: Simplify right side
    5,310.16x = 40,763,281.73
  5. Step 5: Solve for x
    x = 40,763,281.73/5,310.16
  6. Step 6: Final answer
    x = 7,676.47

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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.