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Finding the Fourth Proportional to 75,015, 112,434.84 and 41,719.32

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Solution

The fourth proportional to 75,015, 112,434.84 and 41,719.32 is: 62,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015 : 112,434.84 = 41,719.32 : x
  2. Step 2: Convert to fraction form
    75,015/112,434.84 = 41,719.32/x
  3. Step 3: Cross multiply
    75,015x = 112,434.84 × 41,719.32
  4. Step 4: Simplify right side
    75,015x = 4,690,705,069.11
  5. Step 5: Solve for x
    x = 4,690,705,069.11/75,015
  6. Step 6: Final answer
    x = 62,530.23

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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.