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Finding the Fourth Proportional to 4,672.64, 7,008.96 and 4,387.52

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Solution

The fourth proportional to 4,672.64, 7,008.96 and 4,387.52 is: 6,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.64 : 7,008.96 = 4,387.52 : x
  2. Step 2: Convert to fraction form
    4,672.64/7,008.96 = 4,387.52/x
  3. Step 3: Cross multiply
    4,672.64x = 7,008.96 × 4,387.52
  4. Step 4: Simplify right side
    4,672.64x = 30,751,952.18
  5. Step 5: Solve for x
    x = 30,751,952.18/4,672.64
  6. Step 6: Final answer
    x = 6,581.28

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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.