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Finding the Fourth Proportional to 36,491.60, 54,751.80 and 14,301.20

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Solution

The fourth proportional to 36,491.60, 54,751.80 and 14,301.20 is: 21,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.60 : 54,751.80 = 14,301.20 : x
  2. Step 2: Convert to fraction form
    36,491.60/54,751.80 = 14,301.20/x
  3. Step 3: Cross multiply
    36,491.60x = 54,751.80 × 14,301.20
  4. Step 4: Simplify right side
    36,491.60x = 783,016,442.16
  5. Step 5: Solve for x
    x = 783,016,442.16/36,491.60
  6. Step 6: Final answer
    x = 21,457.44

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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.