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Finding the Fourth Proportional to 6,711.57, 10,070.91 and 4,877.82

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Solution

The fourth proportional to 6,711.57, 10,070.91 and 4,877.82 is: 7,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.57 : 10,070.91 = 4,877.82 : x
  2. Step 2: Convert to fraction form
    6,711.57/10,070.91 = 4,877.82/x
  3. Step 3: Cross multiply
    6,711.57x = 10,070.91 × 4,877.82
  4. Step 4: Simplify right side
    6,711.57x = 49,124,086.22
  5. Step 5: Solve for x
    x = 49,124,086.22/6,711.57
  6. Step 6: Final answer
    x = 7,319.31

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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.