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Finding the Fourth Proportional to 18,038.58, 24,900.20 and 16,146.82

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Solution

The fourth proportional to 18,038.58, 24,900.20 and 16,146.82 is: 22,288.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.58 : 24,900.20 = 16,146.82 : x
  2. Step 2: Convert to fraction form
    18,038.58/24,900.20 = 16,146.82/x
  3. Step 3: Cross multiply
    18,038.58x = 24,900.20 × 16,146.82
  4. Step 4: Simplify right side
    18,038.58x = 402,059,047.36
  5. Step 5: Solve for x
    x = 402,059,047.36/18,038.58
  6. Step 6: Final answer
    x = 22,288.84

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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.