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Finding the Fourth Proportional to 6,612.78, 9,904.05 and 5,957.22

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Solution

The fourth proportional to 6,612.78, 9,904.05 and 5,957.22 is: 8,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.78 : 9,904.05 = 5,957.22 : x
  2. Step 2: Convert to fraction form
    6,612.78/9,904.05 = 5,957.22/x
  3. Step 3: Cross multiply
    6,612.78x = 9,904.05 × 5,957.22
  4. Step 4: Simplify right side
    6,612.78x = 59,000,604.74
  5. Step 5: Solve for x
    x = 59,000,604.74/6,612.78
  6. Step 6: Final answer
    x = 8,922.21

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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.