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Finding the Fourth Proportional to 57,367.80, 79,164.99 and 31,875.95

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Solution

The fourth proportional to 57,367.80, 79,164.99 and 31,875.95 is: 43,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,367.80 : 79,164.99 = 31,875.95 : x
  2. Step 2: Convert to fraction form
    57,367.80/79,164.99 = 31,875.95/x
  3. Step 3: Cross multiply
    57,367.80x = 79,164.99 × 31,875.95
  4. Step 4: Simplify right side
    57,367.80x = 2,523,459,460.90
  5. Step 5: Solve for x
    x = 2,523,459,460.90/57,367.80
  6. Step 6: Final answer
    x = 43,987.38

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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.