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Finding the Fourth Proportional to 38,485.80, 57,728.70 and 32,848.20

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Solution

The fourth proportional to 38,485.80, 57,728.70 and 32,848.20 is: 49,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,485.80 : 57,728.70 = 32,848.20 : x
  2. Step 2: Convert to fraction form
    38,485.80/57,728.70 = 32,848.20/x
  3. Step 3: Cross multiply
    38,485.80x = 57,728.70 × 32,848.20
  4. Step 4: Simplify right side
    38,485.80x = 1,896,283,883.34
  5. Step 5: Solve for x
    x = 1,896,283,883.34/38,485.80
  6. Step 6: Final answer
    x = 49,272.30

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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.