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Finding the Fourth Proportional to 22,690.61, 34,036.08 and 7,899.49

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Solution

The fourth proportional to 22,690.61, 34,036.08 and 7,899.49 is: 11,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.61 : 34,036.08 = 7,899.49 : x
  2. Step 2: Convert to fraction form
    22,690.61/34,036.08 = 7,899.49/x
  3. Step 3: Cross multiply
    22,690.61x = 34,036.08 × 7,899.49
  4. Step 4: Simplify right side
    22,690.61x = 268,867,673.60
  5. Step 5: Solve for x
    x = 268,867,673.60/22,690.61
  6. Step 6: Final answer
    x = 11,849.29

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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.