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Finding the Fourth Proportional to 9,503.70, 14,243.10 and 5,111.70

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Solution

The fourth proportional to 9,503.70, 14,243.10 and 5,111.70 is: 7,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.70 : 14,243.10 = 5,111.70 : x
  2. Step 2: Convert to fraction form
    9,503.70/14,243.10 = 5,111.70/x
  3. Step 3: Cross multiply
    9,503.70x = 14,243.10 × 5,111.70
  4. Step 4: Simplify right side
    9,503.70x = 72,806,454.27
  5. Step 5: Solve for x
    x = 72,806,454.27/9,503.70
  6. Step 6: Final answer
    x = 7,660.85

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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.