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Finding the Fourth Proportional to 22,988.89, 34,458.81 and 13,106.89

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Solution

The fourth proportional to 22,988.89, 34,458.81 and 13,106.89 is: 19,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,988.89 : 34,458.81 = 13,106.89 : x
  2. Step 2: Convert to fraction form
    22,988.89/34,458.81 = 13,106.89/x
  3. Step 3: Cross multiply
    22,988.89x = 34,458.81 × 13,106.89
  4. Step 4: Simplify right side
    22,988.89x = 451,647,832.20
  5. Step 5: Solve for x
    x = 451,647,832.20/22,988.89
  6. Step 6: Final answer
    x = 19,646.35

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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.