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Finding the Fourth Proportional to 6,473.61, 8,934.62 and 3,957.19

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Solution

The fourth proportional to 6,473.61, 8,934.62 and 3,957.19 is: 5,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.61 : 8,934.62 = 3,957.19 : x
  2. Step 2: Convert to fraction form
    6,473.61/8,934.62 = 3,957.19/x
  3. Step 3: Cross multiply
    6,473.61x = 8,934.62 × 3,957.19
  4. Step 4: Simplify right side
    6,473.61x = 35,355,946.80
  5. Step 5: Solve for x
    x = 35,355,946.80/6,473.61
  6. Step 6: Final answer
    x = 5,461.55

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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.