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Finding the Fourth Proportional to 10,961.99, 15,123.98 and 6,708.62

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Solution

The fourth proportional to 10,961.99, 15,123.98 and 6,708.62 is: 9,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.99 : 15,123.98 = 6,708.62 : x
  2. Step 2: Convert to fraction form
    10,961.99/15,123.98 = 6,708.62/x
  3. Step 3: Cross multiply
    10,961.99x = 15,123.98 × 6,708.62
  4. Step 4: Simplify right side
    10,961.99x = 101,460,925.54
  5. Step 5: Solve for x
    x = 101,460,925.54/10,961.99
  6. Step 6: Final answer
    x = 9,255.70

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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.