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Finding the Fourth Proportional to 22,990.40, 34,455.95 and 9,648.37

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Solution

The fourth proportional to 22,990.40, 34,455.95 and 9,648.37 is: 14,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.40 : 34,455.95 = 9,648.37 : x
  2. Step 2: Convert to fraction form
    22,990.40/34,455.95 = 9,648.37/x
  3. Step 3: Cross multiply
    22,990.40x = 34,455.95 × 9,648.37
  4. Step 4: Simplify right side
    22,990.40x = 332,443,754.30
  5. Step 5: Solve for x
    x = 332,443,754.30/22,990.40
  6. Step 6: Final answer
    x = 14,460.11

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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.