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Finding the Fourth Proportional to 12,860.01, 17,745.21 and 7,554.71

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Solution

The fourth proportional to 12,860.01, 17,745.21 and 7,554.71 is: 10,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.01 : 17,745.21 = 7,554.71 : x
  2. Step 2: Convert to fraction form
    12,860.01/17,745.21 = 7,554.71/x
  3. Step 3: Cross multiply
    12,860.01x = 17,745.21 × 7,554.71
  4. Step 4: Simplify right side
    12,860.01x = 134,059,959.80
  5. Step 5: Solve for x
    x = 134,059,959.80/12,860.01
  6. Step 6: Final answer
    x = 10,424.56

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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.