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Finding the Fourth Proportional to 74,604.30, 111,906.45 and 25,356.30

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Solution

The fourth proportional to 74,604.30, 111,906.45 and 25,356.30 is: 38,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604.30 : 111,906.45 = 25,356.30 : x
  2. Step 2: Convert to fraction form
    74,604.30/111,906.45 = 25,356.30/x
  3. Step 3: Cross multiply
    74,604.30x = 111,906.45 × 25,356.30
  4. Step 4: Simplify right side
    74,604.30x = 2,837,533,518.14
  5. Step 5: Solve for x
    x = 2,837,533,518.14/74,604.30
  6. Step 6: Final answer
    x = 38,034.45

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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.