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Finding the Fourth Proportional to 70,061.21, 96,659.19 and 53,933.45

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Solution

The fourth proportional to 70,061.21, 96,659.19 and 53,933.45 is: 74,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,061.21 : 96,659.19 = 53,933.45 : x
  2. Step 2: Convert to fraction form
    70,061.21/96,659.19 = 53,933.45/x
  3. Step 3: Cross multiply
    70,061.21x = 96,659.19 × 53,933.45
  4. Step 4: Simplify right side
    70,061.21x = 5,213,163,107.61
  5. Step 5: Solve for x
    x = 5,213,163,107.61/70,061.21
  6. Step 6: Final answer
    x = 74,408.70

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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.