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Finding the Fourth Proportional to 14,160.92, 19,542.78 and 7,873.16

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Solution

The fourth proportional to 14,160.92, 19,542.78 and 7,873.16 is: 10,865.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.92 : 19,542.78 = 7,873.16 : x
  2. Step 2: Convert to fraction form
    14,160.92/19,542.78 = 7,873.16/x
  3. Step 3: Cross multiply
    14,160.92x = 19,542.78 × 7,873.16
  4. Step 4: Simplify right side
    14,160.92x = 153,863,433.78
  5. Step 5: Solve for x
    x = 153,863,433.78/14,160.92
  6. Step 6: Final answer
    x = 10,865.36

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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.