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Finding the Fourth Proportional to 62,774.88, 86,628.52 and 34,478.75

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Solution

The fourth proportional to 62,774.88, 86,628.52 and 34,478.75 is: 47,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,774.88 : 86,628.52 = 34,478.75 : x
  2. Step 2: Convert to fraction form
    62,774.88/86,628.52 = 34,478.75/x
  3. Step 3: Cross multiply
    62,774.88x = 86,628.52 × 34,478.75
  4. Step 4: Simplify right side
    62,774.88x = 2,986,843,083.95
  5. Step 5: Solve for x
    x = 2,986,843,083.95/62,774.88
  6. Step 6: Final answer
    x = 47,580.23

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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.