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Finding the Fourth Proportional to 75,477.20, 113,212.20 and 25,552.40

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Solution

The fourth proportional to 75,477.20, 113,212.20 and 25,552.40 is: 38,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,477.20 : 113,212.20 = 25,552.40 : x
  2. Step 2: Convert to fraction form
    75,477.20/113,212.20 = 25,552.40/x
  3. Step 3: Cross multiply
    75,477.20x = 113,212.20 × 25,552.40
  4. Step 4: Simplify right side
    75,477.20x = 2,892,843,419.28
  5. Step 5: Solve for x
    x = 2,892,843,419.28/75,477.20
  6. Step 6: Final answer
    x = 38,327.38

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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.