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Finding the Fourth Proportional to 9,041.70, 13,544.55 and 7,959.30

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Solution

The fourth proportional to 9,041.70, 13,544.55 and 7,959.30 is: 11,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,041.70 : 13,544.55 = 7,959.30 : x
  2. Step 2: Convert to fraction form
    9,041.70/13,544.55 = 7,959.30/x
  3. Step 3: Cross multiply
    9,041.70x = 13,544.55 × 7,959.30
  4. Step 4: Simplify right side
    9,041.70x = 107,805,136.82
  5. Step 5: Solve for x
    x = 107,805,136.82/9,041.70
  6. Step 6: Final answer
    x = 11,923.10

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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.