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Finding the Fourth Proportional to 10,357.91, 14,294.91 and 6,381.35

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Solution

The fourth proportional to 10,357.91, 14,294.91 and 6,381.35 is: 8,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.91 : 14,294.91 = 6,381.35 : x
  2. Step 2: Convert to fraction form
    10,357.91/14,294.91 = 6,381.35/x
  3. Step 3: Cross multiply
    10,357.91x = 14,294.91 × 6,381.35
  4. Step 4: Simplify right side
    10,357.91x = 91,220,752.45
  5. Step 5: Solve for x
    x = 91,220,752.45/10,357.91
  6. Step 6: Final answer
    x = 8,806.87

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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.