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Finding the Fourth Proportional to 6,392.20, 9,575.53 and 5,078.17

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Solution

The fourth proportional to 6,392.20, 9,575.53 and 5,078.17 is: 7,607.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.20 : 9,575.53 = 5,078.17 : x
  2. Step 2: Convert to fraction form
    6,392.20/9,575.53 = 5,078.17/x
  3. Step 3: Cross multiply
    6,392.20x = 9,575.53 × 5,078.17
  4. Step 4: Simplify right side
    6,392.20x = 48,626,169.18
  5. Step 5: Solve for x
    x = 48,626,169.18/6,392.20
  6. Step 6: Final answer
    x = 7,607.11

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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.