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Finding the Fourth Proportional to 75,433.43, 112,977.90 and 36,018.23

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Solution

The fourth proportional to 75,433.43, 112,977.90 and 36,018.23 is: 53,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,433.43 : 112,977.90 = 36,018.23 : x
  2. Step 2: Convert to fraction form
    75,433.43/112,977.90 = 36,018.23/x
  3. Step 3: Cross multiply
    75,433.43x = 112,977.90 × 36,018.23
  4. Step 4: Simplify right side
    75,433.43x = 4,069,263,987.12
  5. Step 5: Solve for x
    x = 4,069,263,987.12/75,433.43
  6. Step 6: Final answer
    x = 53,945.10

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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.