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Finding the Fourth Proportional to 12,369.62, 18,526.80 and 9,587.90

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Solution

The fourth proportional to 12,369.62, 18,526.80 and 9,587.90 is: 14,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.62 : 18,526.80 = 9,587.90 : x
  2. Step 2: Convert to fraction form
    12,369.62/18,526.80 = 9,587.90/x
  3. Step 3: Cross multiply
    12,369.62x = 18,526.80 × 9,587.90
  4. Step 4: Simplify right side
    12,369.62x = 177,633,105.72
  5. Step 5: Solve for x
    x = 177,633,105.72/12,369.62
  6. Step 6: Final answer
    x = 14,360.43

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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.