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Finding the Fourth Proportional to 12,957.88, 19,424.52 and 5,065.46

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Solution

The fourth proportional to 12,957.88, 19,424.52 and 5,065.46 is: 7,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.88 : 19,424.52 = 5,065.46 : x
  2. Step 2: Convert to fraction form
    12,957.88/19,424.52 = 5,065.46/x
  3. Step 3: Cross multiply
    12,957.88x = 19,424.52 × 5,065.46
  4. Step 4: Simplify right side
    12,957.88x = 98,394,129.08
  5. Step 5: Solve for x
    x = 98,394,129.08/12,957.88
  6. Step 6: Final answer
    x = 7,593.38

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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.