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Finding the Fourth Proportional to 69,728.78, 104,548.80 and 32,238.74

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Solution

The fourth proportional to 69,728.78, 104,548.80 and 32,238.74 is: 48,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.78 : 104,548.80 = 32,238.74 : x
  2. Step 2: Convert to fraction form
    69,728.78/104,548.80 = 32,238.74/x
  3. Step 3: Cross multiply
    69,728.78x = 104,548.80 × 32,238.74
  4. Step 4: Simplify right side
    69,728.78x = 3,370,521,580.51
  5. Step 5: Solve for x
    x = 3,370,521,580.51/69,728.78
  6. Step 6: Final answer
    x = 48,337.60

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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.