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Finding the Fourth Proportional to 32,506.40, 48,761.40 and 9,131

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Solution

The fourth proportional to 32,506.40, 48,761.40 and 9,131 is: 13,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,506.40 : 48,761.40 = 9,131 : x
  2. Step 2: Convert to fraction form
    32,506.40/48,761.40 = 9,131/x
  3. Step 3: Cross multiply
    32,506.40x = 48,761.40 × 9,131
  4. Step 4: Simplify right side
    32,506.40x = 445,240,343.40
  5. Step 5: Solve for x
    x = 445,240,343.40/32,506.40
  6. Step 6: Final answer
    x = 13,697.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.