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Finding the Fourth Proportional to 18,107.76, 24,989.75 and 10,152.52

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Solution

The fourth proportional to 18,107.76, 24,989.75 and 10,152.52 is: 14,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.76 : 24,989.75 = 10,152.52 : x
  2. Step 2: Convert to fraction form
    18,107.76/24,989.75 = 10,152.52/x
  3. Step 3: Cross multiply
    18,107.76x = 24,989.75 × 10,152.52
  4. Step 4: Simplify right side
    18,107.76x = 253,708,936.67
  5. Step 5: Solve for x
    x = 253,708,936.67/18,107.76
  6. Step 6: Final answer
    x = 14,011.06

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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.