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Finding the Fourth Proportional to 67,858.90, 93,645.20 and 37,648.80

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Solution

The fourth proportional to 67,858.90, 93,645.20 and 37,648.80 is: 51,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,858.90 : 93,645.20 = 37,648.80 : x
  2. Step 2: Convert to fraction form
    67,858.90/93,645.20 = 37,648.80/x
  3. Step 3: Cross multiply
    67,858.90x = 93,645.20 × 37,648.80
  4. Step 4: Simplify right side
    67,858.90x = 3,525,629,405.76
  5. Step 5: Solve for x
    x = 3,525,629,405.76/67,858.90
  6. Step 6: Final answer
    x = 51,955.30

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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.