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Finding the Fourth Proportional to 75,062.39, 112,619.70 and 47,003.18

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Solution

The fourth proportional to 75,062.39, 112,619.70 and 47,003.18 is: 70,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,062.39 : 112,619.70 = 47,003.18 : x
  2. Step 2: Convert to fraction form
    75,062.39/112,619.70 = 47,003.18/x
  3. Step 3: Cross multiply
    75,062.39x = 112,619.70 × 47,003.18
  4. Step 4: Simplify right side
    75,062.39x = 5,293,483,467.55
  5. Step 5: Solve for x
    x = 5,293,483,467.55/75,062.39
  6. Step 6: Final answer
    x = 70,521.12

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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.