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Finding the Fourth Proportional to 6,359.76, 8,772.96 and 4,470.57

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Solution

The fourth proportional to 6,359.76, 8,772.96 and 4,470.57 is: 6,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.76 : 8,772.96 = 4,470.57 : x
  2. Step 2: Convert to fraction form
    6,359.76/8,772.96 = 4,470.57/x
  3. Step 3: Cross multiply
    6,359.76x = 8,772.96 × 4,470.57
  4. Step 4: Simplify right side
    6,359.76x = 39,220,131.79
  5. Step 5: Solve for x
    x = 39,220,131.79/6,359.76
  6. Step 6: Final answer
    x = 6,166.92

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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.