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Finding the Fourth Proportional to 64,205.52, 88,589.34 and 40,323.48

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Solution

The fourth proportional to 64,205.52, 88,589.34 and 40,323.48 is: 55,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,205.52 : 88,589.34 = 40,323.48 : x
  2. Step 2: Convert to fraction form
    64,205.52/88,589.34 = 40,323.48/x
  3. Step 3: Cross multiply
    64,205.52x = 88,589.34 × 40,323.48
  4. Step 4: Simplify right side
    64,205.52x = 3,572,230,479.70
  5. Step 5: Solve for x
    x = 3,572,230,479.70/64,205.52
  6. Step 6: Final answer
    x = 55,637.44

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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.