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Finding the Fourth Proportional to 52,617.48, 72,609.48 and 28,739.76

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Solution

The fourth proportional to 52,617.48, 72,609.48 and 28,739.76 is: 39,659.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,617.48 : 72,609.48 = 28,739.76 : x
  2. Step 2: Convert to fraction form
    52,617.48/72,609.48 = 28,739.76/x
  3. Step 3: Cross multiply
    52,617.48x = 72,609.48 × 28,739.76
  4. Step 4: Simplify right side
    52,617.48x = 2,086,779,028.92
  5. Step 5: Solve for x
    x = 2,086,779,028.92/52,617.48
  6. Step 6: Final answer
    x = 39,659.43

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1.5x scale

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.