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Finding the Fourth Proportional to 39,703.86, 54,786.87 and 23,565.42

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Solution

The fourth proportional to 39,703.86, 54,786.87 and 23,565.42 is: 32,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.86 : 54,786.87 = 23,565.42 : x
  2. Step 2: Convert to fraction form
    39,703.86/54,786.87 = 23,565.42/x
  3. Step 3: Cross multiply
    39,703.86x = 54,786.87 × 23,565.42
  4. Step 4: Simplify right side
    39,703.86x = 1,291,075,602.04
  5. Step 5: Solve for x
    x = 1,291,075,602.04/39,703.86
  6. Step 6: Final answer
    x = 32,517.63

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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.