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Finding the Fourth Proportional to 18,030.98, 27,060.42 and 12,522.98

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Solution

The fourth proportional to 18,030.98, 27,060.42 and 12,522.98 is: 18,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.98 : 27,060.42 = 12,522.98 : x
  2. Step 2: Convert to fraction form
    18,030.98/27,060.42 = 12,522.98/x
  3. Step 3: Cross multiply
    18,030.98x = 27,060.42 × 12,522.98
  4. Step 4: Simplify right side
    18,030.98x = 338,877,098.45
  5. Step 5: Solve for x
    x = 338,877,098.45/18,030.98
  6. Step 6: Final answer
    x = 18,794.16

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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.