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Finding the Fourth Proportional to 8,507.61, 11,740.11 and 4,731.03

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Solution

The fourth proportional to 8,507.61, 11,740.11 and 4,731.03 is: 6,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.61 : 11,740.11 = 4,731.03 : x
  2. Step 2: Convert to fraction form
    8,507.61/11,740.11 = 4,731.03/x
  3. Step 3: Cross multiply
    8,507.61x = 11,740.11 × 4,731.03
  4. Step 4: Simplify right side
    8,507.61x = 55,542,812.61
  5. Step 5: Solve for x
    x = 55,542,812.61/8,507.61
  6. Step 6: Final answer
    x = 6,528.60

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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.