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Finding the Fourth Proportional to 8,808.28, 12,154.88 and 4,828.62

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Solution

The fourth proportional to 8,808.28, 12,154.88 and 4,828.62 is: 6,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.28 : 12,154.88 = 4,828.62 : x
  2. Step 2: Convert to fraction form
    8,808.28/12,154.88 = 4,828.62/x
  3. Step 3: Cross multiply
    8,808.28x = 12,154.88 × 4,828.62
  4. Step 4: Simplify right side
    8,808.28x = 58,691,296.67
  5. Step 5: Solve for x
    x = 58,691,296.67/8,808.28
  6. Step 6: Final answer
    x = 6,663.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.