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Finding the Fourth Proportional to 17,869.95, 24,660.05 and 9,912.11

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Solution

The fourth proportional to 17,869.95, 24,660.05 and 9,912.11 is: 13,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,869.95 : 24,660.05 = 9,912.11 : x
  2. Step 2: Convert to fraction form
    17,869.95/24,660.05 = 9,912.11/x
  3. Step 3: Cross multiply
    17,869.95x = 24,660.05 × 9,912.11
  4. Step 4: Simplify right side
    17,869.95x = 244,432,955.34
  5. Step 5: Solve for x
    x = 244,432,955.34/17,869.95
  6. Step 6: Final answer
    x = 13,678.44

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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.