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Finding the Fourth Proportional to 48,661.68, 67,153.44 and 30,764.76

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Solution

The fourth proportional to 48,661.68, 67,153.44 and 30,764.76 is: 42,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,661.68 : 67,153.44 = 30,764.76 : x
  2. Step 2: Convert to fraction form
    48,661.68/67,153.44 = 30,764.76/x
  3. Step 3: Cross multiply
    48,661.68x = 67,153.44 × 30,764.76
  4. Step 4: Simplify right side
    48,661.68x = 2,065,959,464.77
  5. Step 5: Solve for x
    x = 2,065,959,464.77/48,661.68
  6. Step 6: Final answer
    x = 42,455.57

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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.