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Finding the Fourth Proportional to 57,165.70, 78,888.57 and 32,015.20

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Solution

The fourth proportional to 57,165.70, 78,888.57 and 32,015.20 is: 44,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,165.70 : 78,888.57 = 32,015.20 : x
  2. Step 2: Convert to fraction form
    57,165.70/78,888.57 = 32,015.20/x
  3. Step 3: Cross multiply
    57,165.70x = 78,888.57 × 32,015.20
  4. Step 4: Simplify right side
    57,165.70x = 2,525,633,346.26
  5. Step 5: Solve for x
    x = 2,525,633,346.26/57,165.70
  6. Step 6: Final answer
    x = 44,180.92

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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.