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Finding the Fourth Proportional to 43,710.15, 65,565.24 and 18,734.00

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Solution

The fourth proportional to 43,710.15, 65,565.24 and 18,734.00 is: 28,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,710.15 : 65,565.24 = 18,734.00 : x
  2. Step 2: Convert to fraction form
    43,710.15/65,565.24 = 18,734.00/x
  3. Step 3: Cross multiply
    43,710.15x = 65,565.24 × 18,734.00
  4. Step 4: Simplify right side
    43,710.15x = 1,228,299,370.07
  5. Step 5: Solve for x
    x = 1,228,299,370.07/43,710.15
  6. Step 6: Final answer
    x = 28,101.01

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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.