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Finding the Fourth Proportional to 18,607.60, 27,943.80 and 18,024.40

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Solution

The fourth proportional to 18,607.60, 27,943.80 and 18,024.40 is: 27,067.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.60 : 27,943.80 = 18,024.40 : x
  2. Step 2: Convert to fraction form
    18,607.60/27,943.80 = 18,024.40/x
  3. Step 3: Cross multiply
    18,607.60x = 27,943.80 × 18,024.40
  4. Step 4: Simplify right side
    18,607.60x = 503,670,228.72
  5. Step 5: Solve for x
    x = 503,670,228.72/18,607.60
  6. Step 6: Final answer
    x = 27,067.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.