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Finding the Fourth Proportional to 8,881.28, 13,313 and 3,033.88

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Solution

The fourth proportional to 8,881.28, 13,313 and 3,033.88 is: 4,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.28 : 13,313 = 3,033.88 : x
  2. Step 2: Convert to fraction form
    8,881.28/13,313 = 3,033.88/x
  3. Step 3: Cross multiply
    8,881.28x = 13,313 × 3,033.88
  4. Step 4: Simplify right side
    8,881.28x = 40,390,044.44
  5. Step 5: Solve for x
    x = 40,390,044.44/8,881.28
  6. Step 6: Final answer
    x = 4,547.77

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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.