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Finding the Fourth Proportional to 50,557.79, 69,765 and 48,859.22

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Solution

The fourth proportional to 50,557.79, 69,765 and 48,859.22 is: 67,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,557.79 : 69,765 = 48,859.22 : x
  2. Step 2: Convert to fraction form
    50,557.79/69,765 = 48,859.22/x
  3. Step 3: Cross multiply
    50,557.79x = 69,765 × 48,859.22
  4. Step 4: Simplify right side
    50,557.79x = 3,408,663,134.48
  5. Step 5: Solve for x
    x = 3,408,663,134.48/50,557.79
  6. Step 6: Final answer
    x = 67,421.13

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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.