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Finding the Fourth Proportional to 4,980.67, 7,500.65 and 4,339.15

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Solution

The fourth proportional to 4,980.67, 7,500.65 and 4,339.15 is: 6,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.67 : 7,500.65 = 4,339.15 : x
  2. Step 2: Convert to fraction form
    4,980.67/7,500.65 = 4,339.15/x
  3. Step 3: Cross multiply
    4,980.67x = 7,500.65 × 4,339.15
  4. Step 4: Simplify right side
    4,980.67x = 32,546,445.45
  5. Step 5: Solve for x
    x = 32,546,445.45/4,980.67
  6. Step 6: Final answer
    x = 6,534.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.