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Finding the Fourth Proportional to 48,463.74, 66,867.93 and 28,309.05

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Solution

The fourth proportional to 48,463.74, 66,867.93 and 28,309.05 is: 39,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,463.74 : 66,867.93 = 28,309.05 : x
  2. Step 2: Convert to fraction form
    48,463.74/66,867.93 = 28,309.05/x
  3. Step 3: Cross multiply
    48,463.74x = 66,867.93 × 28,309.05
  4. Step 4: Simplify right side
    48,463.74x = 1,892,967,573.77
  5. Step 5: Solve for x
    x = 1,892,967,573.77/48,463.74
  6. Step 6: Final answer
    x = 39,059.46

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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.