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Finding the Fourth Proportional to 72,632.44, 100,240.02 and 48,808.72

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Solution

The fourth proportional to 72,632.44, 100,240.02 and 48,808.72 is: 67,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,632.44 : 100,240.02 = 48,808.72 : x
  2. Step 2: Convert to fraction form
    72,632.44/100,240.02 = 48,808.72/x
  3. Step 3: Cross multiply
    72,632.44x = 100,240.02 × 48,808.72
  4. Step 4: Simplify right side
    72,632.44x = 4,892,587,068.97
  5. Step 5: Solve for x
    x = 4,892,587,068.97/72,632.44
  6. Step 6: Final answer
    x = 67,360.91

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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.