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Finding the Fourth Proportional to 9,011.59, 12,435.08 and 6,181.38

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Solution

The fourth proportional to 9,011.59, 12,435.08 and 6,181.38 is: 8,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.59 : 12,435.08 = 6,181.38 : x
  2. Step 2: Convert to fraction form
    9,011.59/12,435.08 = 6,181.38/x
  3. Step 3: Cross multiply
    9,011.59x = 12,435.08 × 6,181.38
  4. Step 4: Simplify right side
    9,011.59x = 76,865,970.26
  5. Step 5: Solve for x
    x = 76,865,970.26/9,011.59
  6. Step 6: Final answer
    x = 8,529.68

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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.