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Finding the Fourth Proportional to 14,244.78, 19,658.16 and 7,957.56

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Solution

The fourth proportional to 14,244.78, 19,658.16 and 7,957.56 is: 10,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,244.78 : 19,658.16 = 7,957.56 : x
  2. Step 2: Convert to fraction form
    14,244.78/19,658.16 = 7,957.56/x
  3. Step 3: Cross multiply
    14,244.78x = 19,658.16 × 7,957.56
  4. Step 4: Simplify right side
    14,244.78x = 156,430,987.69
  5. Step 5: Solve for x
    x = 156,430,987.69/14,244.78
  6. Step 6: Final answer
    x = 10,981.64

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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.