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Finding the Fourth Proportional to 53,383.61, 80,079.06 and 15,942.98

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Solution

The fourth proportional to 53,383.61, 80,079.06 and 15,942.98 is: 23,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,383.61 : 80,079.06 = 15,942.98 : x
  2. Step 2: Convert to fraction form
    53,383.61/80,079.06 = 15,942.98/x
  3. Step 3: Cross multiply
    53,383.61x = 80,079.06 × 15,942.98
  4. Step 4: Simplify right side
    53,383.61x = 1,276,698,451.60
  5. Step 5: Solve for x
    x = 1,276,698,451.60/53,383.61
  6. Step 6: Final answer
    x = 23,915.55

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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.