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Finding the Fourth Proportional to 12,088.65, 18,136.04 and 5,851.65

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Solution

The fourth proportional to 12,088.65, 18,136.04 and 5,851.65 is: 8,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.65 : 18,136.04 = 5,851.65 : x
  2. Step 2: Convert to fraction form
    12,088.65/18,136.04 = 5,851.65/x
  3. Step 3: Cross multiply
    12,088.65x = 18,136.04 × 5,851.65
  4. Step 4: Simplify right side
    12,088.65x = 106,125,729.21
  5. Step 5: Solve for x
    x = 106,125,729.21/12,088.65
  6. Step 6: Final answer
    x = 8,778.96

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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.