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Finding the Fourth Proportional to 14,154.92, 19,534.44 and 7,866.92

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Solution

The fourth proportional to 14,154.92, 19,534.44 and 7,866.92 is: 10,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.92 : 19,534.44 = 7,866.92 : x
  2. Step 2: Convert to fraction form
    14,154.92/19,534.44 = 7,866.92/x
  3. Step 3: Cross multiply
    14,154.92x = 19,534.44 × 7,866.92
  4. Step 4: Simplify right side
    14,154.92x = 153,675,876.72
  5. Step 5: Solve for x
    x = 153,675,876.72/14,154.92
  6. Step 6: Final answer
    x = 10,856.71

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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.