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Finding the Fourth Proportional to 9,354.88, 12,904.32 and 6,042.88

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Solution

The fourth proportional to 9,354.88, 12,904.32 and 6,042.88 is: 8,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.88 : 12,904.32 = 6,042.88 : x
  2. Step 2: Convert to fraction form
    9,354.88/12,904.32 = 6,042.88/x
  3. Step 3: Cross multiply
    9,354.88x = 12,904.32 × 6,042.88
  4. Step 4: Simplify right side
    9,354.88x = 77,979,257.24
  5. Step 5: Solve for x
    x = 77,979,257.24/9,354.88
  6. Step 6: Final answer
    x = 8,335.68

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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.