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Finding the Fourth Proportional to 8,842.38, 13,260.76 and 2,918.17

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Solution

The fourth proportional to 8,842.38, 13,260.76 and 2,918.17 is: 4,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.38 : 13,260.76 = 2,918.17 : x
  2. Step 2: Convert to fraction form
    8,842.38/13,260.76 = 2,918.17/x
  3. Step 3: Cross multiply
    8,842.38x = 13,260.76 × 2,918.17
  4. Step 4: Simplify right side
    8,842.38x = 38,697,086.70
  5. Step 5: Solve for x
    x = 38,697,086.70/8,842.38
  6. Step 6: Final answer
    x = 4,376.32

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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.