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Finding the Fourth Proportional to 47,679.72, 65,798.40 and 26,459.40

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Solution

The fourth proportional to 47,679.72, 65,798.40 and 26,459.40 is: 36,514.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,679.72 : 65,798.40 = 26,459.40 : x
  2. Step 2: Convert to fraction form
    47,679.72/65,798.40 = 26,459.40/x
  3. Step 3: Cross multiply
    47,679.72x = 65,798.40 × 26,459.40
  4. Step 4: Simplify right side
    47,679.72x = 1,740,986,184.96
  5. Step 5: Solve for x
    x = 1,740,986,184.96/47,679.72
  6. Step 6: Final answer
    x = 36,514.19

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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.