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Finding the Fourth Proportional to 8,802.31, 12,147.09 and 4,769.06

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Solution

The fourth proportional to 8,802.31, 12,147.09 and 4,769.06 is: 6,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.31 : 12,147.09 = 4,769.06 : x
  2. Step 2: Convert to fraction form
    8,802.31/12,147.09 = 4,769.06/x
  3. Step 3: Cross multiply
    8,802.31x = 12,147.09 × 4,769.06
  4. Step 4: Simplify right side
    8,802.31x = 57,930,201.04
  5. Step 5: Solve for x
    x = 57,930,201.04/8,802.31
  6. Step 6: Final answer
    x = 6,581.25

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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.