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Finding the Fourth Proportional to 75,015.57, 112,578.74 and 35,572.82

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Solution

The fourth proportional to 75,015.57, 112,578.74 and 35,572.82 is: 53,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015.57 : 112,578.74 = 35,572.82 : x
  2. Step 2: Convert to fraction form
    75,015.57/112,578.74 = 35,572.82/x
  3. Step 3: Cross multiply
    75,015.57x = 112,578.74 × 35,572.82
  4. Step 4: Simplify right side
    75,015.57x = 4,004,742,513.09
  5. Step 5: Solve for x
    x = 4,004,742,513.09/75,015.57
  6. Step 6: Final answer
    x = 53,385.48

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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.