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Finding the Fourth Proportional to 75,669, 104,373.19 and 47,325.48

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Solution

The fourth proportional to 75,669, 104,373.19 and 47,325.48 is: 65,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,669 : 104,373.19 = 47,325.48 : x
  2. Step 2: Convert to fraction form
    75,669/104,373.19 = 47,325.48/x
  3. Step 3: Cross multiply
    75,669x = 104,373.19 × 47,325.48
  4. Step 4: Simplify right side
    75,669x = 4,939,511,315.88
  5. Step 5: Solve for x
    x = 4,939,511,315.88/75,669
  6. Step 6: Final answer
    x = 65,277.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.