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Finding the Fourth Proportional to 74,483.85, 111,726.99 and 18,324.12

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Solution

The fourth proportional to 74,483.85, 111,726.99 and 18,324.12 is: 27,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,483.85 : 111,726.99 = 18,324.12 : x
  2. Step 2: Convert to fraction form
    74,483.85/111,726.99 = 18,324.12/x
  3. Step 3: Cross multiply
    74,483.85x = 111,726.99 × 18,324.12
  4. Step 4: Simplify right side
    74,483.85x = 2,047,298,772.00
  5. Step 5: Solve for x
    x = 2,047,298,772.00/74,483.85
  6. Step 6: Final answer
    x = 27,486.48

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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.