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Finding the Fourth Proportional to 12,959.55, 19,437.03 and 3,600.23

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Solution

The fourth proportional to 12,959.55, 19,437.03 and 3,600.23 is: 5,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.55 : 19,437.03 = 3,600.23 : x
  2. Step 2: Convert to fraction form
    12,959.55/19,437.03 = 3,600.23/x
  3. Step 3: Cross multiply
    12,959.55x = 19,437.03 × 3,600.23
  4. Step 4: Simplify right side
    12,959.55x = 69,977,681.33
  5. Step 5: Solve for x
    x = 69,977,681.33/12,959.55
  6. Step 6: Final answer
    x = 5,399.70

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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.