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Finding the Fourth Proportional to 18,101.04, 24,978.24 and 10,143.24

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Solution

The fourth proportional to 18,101.04, 24,978.24 and 10,143.24 is: 13,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.04 : 24,978.24 = 10,143.24 : x
  2. Step 2: Convert to fraction form
    18,101.04/24,978.24 = 10,143.24/x
  3. Step 3: Cross multiply
    18,101.04x = 24,978.24 × 10,143.24
  4. Step 4: Simplify right side
    18,101.04x = 253,360,283.10
  5. Step 5: Solve for x
    x = 253,360,283.10/18,101.04
  6. Step 6: Final answer
    x = 13,997.00

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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.