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Finding the Fourth Proportional to 11,337.95, 15,640.93 and 9,763.31

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Solution

The fourth proportional to 11,337.95, 15,640.93 and 9,763.31 is: 13,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.95 : 15,640.93 = 9,763.31 : x
  2. Step 2: Convert to fraction form
    11,337.95/15,640.93 = 9,763.31/x
  3. Step 3: Cross multiply
    11,337.95x = 15,640.93 × 9,763.31
  4. Step 4: Simplify right side
    11,337.95x = 152,707,299.58
  5. Step 5: Solve for x
    x = 152,707,299.58/11,337.95
  6. Step 6: Final answer
    x = 13,468.68

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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.