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Finding the Fourth Proportional to 18,038.52, 24,900.12 and 16,146.76

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Solution

The fourth proportional to 18,038.52, 24,900.12 and 16,146.76 is: 22,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.52 : 24,900.12 = 16,146.76 : x
  2. Step 2: Convert to fraction form
    18,038.52/24,900.12 = 16,146.76/x
  3. Step 3: Cross multiply
    18,038.52x = 24,900.12 × 16,146.76
  4. Step 4: Simplify right side
    18,038.52x = 402,056,261.61
  5. Step 5: Solve for x
    x = 402,056,261.61/18,038.52
  6. Step 6: Final answer
    x = 22,288.76

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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.