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Finding the Fourth Proportional to 22,030.92, 30,402.54 and 11,959.38

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Solution

The fourth proportional to 22,030.92, 30,402.54 and 11,959.38 is: 16,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,030.92 : 30,402.54 = 11,959.38 : x
  2. Step 2: Convert to fraction form
    22,030.92/30,402.54 = 11,959.38/x
  3. Step 3: Cross multiply
    22,030.92x = 30,402.54 × 11,959.38
  4. Step 4: Simplify right side
    22,030.92x = 363,595,528.83
  5. Step 5: Solve for x
    x = 363,595,528.83/22,030.92
  6. Step 6: Final answer
    x = 16,503.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.