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Finding the Fourth Proportional to 6,612.66, 9,124.47 and 4,257.99

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Solution

The fourth proportional to 6,612.66, 9,124.47 and 4,257.99 is: 5,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.66 : 9,124.47 = 4,257.99 : x
  2. Step 2: Convert to fraction form
    6,612.66/9,124.47 = 4,257.99/x
  3. Step 3: Cross multiply
    6,612.66x = 9,124.47 × 4,257.99
  4. Step 4: Simplify right side
    6,612.66x = 38,851,902.02
  5. Step 5: Solve for x
    x = 38,851,902.02/6,612.66
  6. Step 6: Final answer
    x = 5,875.38

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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.