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Finding the Fourth Proportional to 62,984.88, 86,832 and 45,048.60

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Solution

The fourth proportional to 62,984.88, 86,832 and 45,048.60 is: 62,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,984.88 : 86,832 = 45,048.60 : x
  2. Step 2: Convert to fraction form
    62,984.88/86,832 = 45,048.60/x
  3. Step 3: Cross multiply
    62,984.88x = 86,832 × 45,048.60
  4. Step 4: Simplify right side
    62,984.88x = 3,911,660,035.20
  5. Step 5: Solve for x
    x = 3,911,660,035.20/62,984.88
  6. Step 6: Final answer
    x = 62,104.75

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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.