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Finding the Fourth Proportional to 71,091.86, 98,106.63 and 40,883.01

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Solution

The fourth proportional to 71,091.86, 98,106.63 and 40,883.01 is: 56,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,091.86 : 98,106.63 = 40,883.01 : x
  2. Step 2: Convert to fraction form
    71,091.86/98,106.63 = 40,883.01/x
  3. Step 3: Cross multiply
    71,091.86x = 98,106.63 × 40,883.01
  4. Step 4: Simplify right side
    71,091.86x = 4,010,894,335.36
  5. Step 5: Solve for x
    x = 4,010,894,335.36/71,091.86
  6. Step 6: Final answer
    x = 56,418.48

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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.