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Finding the Fourth Proportional to 6,456.12, 8,913.85 and 4,334.82

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Solution

The fourth proportional to 6,456.12, 8,913.85 and 4,334.82 is: 5,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.12 : 8,913.85 = 4,334.82 : x
  2. Step 2: Convert to fraction form
    6,456.12/8,913.85 = 4,334.82/x
  3. Step 3: Cross multiply
    6,456.12x = 8,913.85 × 4,334.82
  4. Step 4: Simplify right side
    6,456.12x = 38,639,924.42
  5. Step 5: Solve for x
    x = 38,639,924.42/6,456.12
  6. Step 6: Final answer
    x = 5,985.01

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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.