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Finding the Fourth Proportional to 43,234.80, 64,852.20 and 39,298.20

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Solution

The fourth proportional to 43,234.80, 64,852.20 and 39,298.20 is: 58,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,234.80 : 64,852.20 = 39,298.20 : x
  2. Step 2: Convert to fraction form
    43,234.80/64,852.20 = 39,298.20/x
  3. Step 3: Cross multiply
    43,234.80x = 64,852.20 × 39,298.20
  4. Step 4: Simplify right side
    43,234.80x = 2,548,574,726.04
  5. Step 5: Solve for x
    x = 2,548,574,726.04/43,234.80
  6. Step 6: Final answer
    x = 58,947.30

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1.5x scale

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.