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Finding the Fourth Proportional to 11,475.70, 15,829.18 and 8,293.68

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Solution

The fourth proportional to 11,475.70, 15,829.18 and 8,293.68 is: 11,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.70 : 15,829.18 = 8,293.68 : x
  2. Step 2: Convert to fraction form
    11,475.70/15,829.18 = 8,293.68/x
  3. Step 3: Cross multiply
    11,475.70x = 15,829.18 × 8,293.68
  4. Step 4: Simplify right side
    11,475.70x = 131,282,153.58
  5. Step 5: Solve for x
    x = 131,282,153.58/11,475.70
  6. Step 6: Final answer
    x = 11,440.01

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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.