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Finding the Fourth Proportional to 7,959.88, 10,988.19 and 5,835.42

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Solution

The fourth proportional to 7,959.88, 10,988.19 and 5,835.42 is: 8,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.88 : 10,988.19 = 5,835.42 : x
  2. Step 2: Convert to fraction form
    7,959.88/10,988.19 = 5,835.42/x
  3. Step 3: Cross multiply
    7,959.88x = 10,988.19 × 5,835.42
  4. Step 4: Simplify right side
    7,959.88x = 64,120,697.40
  5. Step 5: Solve for x
    x = 64,120,697.40/7,959.88
  6. Step 6: Final answer
    x = 8,055.48

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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.