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Finding the Fourth Proportional to 10,870.47, 15,001.44 and 8,483.13

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Solution

The fourth proportional to 10,870.47, 15,001.44 and 8,483.13 is: 11,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.47 : 15,001.44 = 8,483.13 : x
  2. Step 2: Convert to fraction form
    10,870.47/15,001.44 = 8,483.13/x
  3. Step 3: Cross multiply
    10,870.47x = 15,001.44 × 8,483.13
  4. Step 4: Simplify right side
    10,870.47x = 127,259,165.71
  5. Step 5: Solve for x
    x = 127,259,165.71/10,870.47
  6. Step 6: Final answer
    x = 11,706.87

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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.