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Finding the Fourth Proportional to 39,144.70, 58,719.03 and 11,066.77

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Solution

The fourth proportional to 39,144.70, 58,719.03 and 11,066.77 is: 16,600.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,144.70 : 58,719.03 = 11,066.77 : x
  2. Step 2: Convert to fraction form
    39,144.70/58,719.03 = 11,066.77/x
  3. Step 3: Cross multiply
    39,144.70x = 58,719.03 × 11,066.77
  4. Step 4: Simplify right side
    39,144.70x = 649,829,999.63
  5. Step 5: Solve for x
    x = 649,829,999.63/39,144.70
  6. Step 6: Final answer
    x = 16,600.71

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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.