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Finding the Fourth Proportional to 32,907.18, 45,400.02 and 18,751.80

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Solution

The fourth proportional to 32,907.18, 45,400.02 and 18,751.80 is: 25,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,907.18 : 45,400.02 = 18,751.80 : x
  2. Step 2: Convert to fraction form
    32,907.18/45,400.02 = 18,751.80/x
  3. Step 3: Cross multiply
    32,907.18x = 45,400.02 × 18,751.80
  4. Step 4: Simplify right side
    32,907.18x = 851,332,095.04
  5. Step 5: Solve for x
    x = 851,332,095.04/32,907.18
  6. Step 6: Final answer
    x = 25,870.71

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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.