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Finding the Fourth Proportional to 79,712.60, 110,004.09 and 43,903.85

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Solution

The fourth proportional to 79,712.60, 110,004.09 and 43,903.85 is: 60,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712.60 : 110,004.09 = 43,903.85 : x
  2. Step 2: Convert to fraction form
    79,712.60/110,004.09 = 43,903.85/x
  3. Step 3: Cross multiply
    79,712.60x = 110,004.09 × 43,903.85
  4. Step 4: Simplify right side
    79,712.60x = 4,829,603,066.75
  5. Step 5: Solve for x
    x = 4,829,603,066.75/79,712.60
  6. Step 6: Final answer
    x = 60,587.70

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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.