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Finding the Fourth Proportional to 8,927.40, 13,391.10 and 6,335.40

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Solution

The fourth proportional to 8,927.40, 13,391.10 and 6,335.40 is: 9,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.40 : 13,391.10 = 6,335.40 : x
  2. Step 2: Convert to fraction form
    8,927.40/13,391.10 = 6,335.40/x
  3. Step 3: Cross multiply
    8,927.40x = 13,391.10 × 6,335.40
  4. Step 4: Simplify right side
    8,927.40x = 84,837,974.94
  5. Step 5: Solve for x
    x = 84,837,974.94/8,927.40
  6. Step 6: Final answer
    x = 9,503.10

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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.