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Finding the Fourth Proportional to 57,365.44, 79,186.89 and 36,140.74

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Solution

The fourth proportional to 57,365.44, 79,186.89 and 36,140.74 is: 49,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,365.44 : 79,186.89 = 36,140.74 : x
  2. Step 2: Convert to fraction form
    57,365.44/79,186.89 = 36,140.74/x
  3. Step 3: Cross multiply
    57,365.44x = 79,186.89 × 36,140.74
  4. Step 4: Simplify right side
    57,365.44x = 2,861,872,802.90
  5. Step 5: Solve for x
    x = 2,861,872,802.90/57,365.44
  6. Step 6: Final answer
    x = 49,888.45

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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.