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Finding the Fourth Proportional to 74,959.47, 112,401 and 25,021.62

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Solution

The fourth proportional to 74,959.47, 112,401 and 25,021.62 is: 37,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,959.47 : 112,401 = 25,021.62 : x
  2. Step 2: Convert to fraction form
    74,959.47/112,401 = 25,021.62/x
  3. Step 3: Cross multiply
    74,959.47x = 112,401 × 25,021.62
  4. Step 4: Simplify right side
    74,959.47x = 2,812,455,109.62
  5. Step 5: Solve for x
    x = 2,812,455,109.62/74,959.47
  6. Step 6: Final answer
    x = 37,519.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.