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Finding the Fourth Proportional to 60,622.78, 83,661.76 and 35,130

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Solution

The fourth proportional to 60,622.78, 83,661.76 and 35,130 is: 48,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,622.78 : 83,661.76 = 35,130 : x
  2. Step 2: Convert to fraction form
    60,622.78/83,661.76 = 35,130/x
  3. Step 3: Cross multiply
    60,622.78x = 83,661.76 × 35,130
  4. Step 4: Simplify right side
    60,622.78x = 2,939,037,628.80
  5. Step 5: Solve for x
    x = 2,939,037,628.80/60,622.78
  6. Step 6: Final answer
    x = 48,480.75

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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.