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Finding the Fourth Proportional to 18,658.60, 27,851.38 and 16,444.32

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Solution

The fourth proportional to 18,658.60, 27,851.38 and 16,444.32 is: 24,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.60 : 27,851.38 = 16,444.32 : x
  2. Step 2: Convert to fraction form
    18,658.60/27,851.38 = 16,444.32/x
  3. Step 3: Cross multiply
    18,658.60x = 27,851.38 × 16,444.32
  4. Step 4: Simplify right side
    18,658.60x = 457,997,005.16
  5. Step 5: Solve for x
    x = 457,997,005.16/18,658.60
  6. Step 6: Final answer
    x = 24,546.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.