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Finding the Fourth Proportional to 43,710.67, 65,549.91 and 15,623.13

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Solution

The fourth proportional to 43,710.67, 65,549.91 and 15,623.13 is: 23,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,710.67 : 65,549.91 = 15,623.13 : x
  2. Step 2: Convert to fraction form
    43,710.67/65,549.91 = 15,623.13/x
  3. Step 3: Cross multiply
    43,710.67x = 65,549.91 × 15,623.13
  4. Step 4: Simplify right side
    43,710.67x = 1,024,094,765.42
  5. Step 5: Solve for x
    x = 1,024,094,765.42/43,710.67
  6. Step 6: Final answer
    x = 23,428.94

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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.