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Finding the Fourth Proportional to 68,348.61, 102,526.02 and 20,960.24

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Solution

The fourth proportional to 68,348.61, 102,526.02 and 20,960.24 is: 31,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.61 : 102,526.02 = 20,960.24 : x
  2. Step 2: Convert to fraction form
    68,348.61/102,526.02 = 20,960.24/x
  3. Step 3: Cross multiply
    68,348.61x = 102,526.02 × 20,960.24
  4. Step 4: Simplify right side
    68,348.61x = 2,148,969,472.81
  5. Step 5: Solve for x
    x = 2,148,969,472.81/68,348.61
  6. Step 6: Final answer
    x = 31,441.30

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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.