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Finding the Fourth Proportional to 61,614.75, 85,018.74 and 34,756.57

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Solution

The fourth proportional to 61,614.75, 85,018.74 and 34,756.57 is: 47,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,614.75 : 85,018.74 = 34,756.57 : x
  2. Step 2: Convert to fraction form
    61,614.75/85,018.74 = 34,756.57/x
  3. Step 3: Cross multiply
    61,614.75x = 85,018.74 × 34,756.57
  4. Step 4: Simplify right side
    61,614.75x = 2,954,959,788.12
  5. Step 5: Solve for x
    x = 2,954,959,788.12/61,614.75
  6. Step 6: Final answer
    x = 47,958.64

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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.