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Finding the Fourth Proportional to 48,475.18, 66,873.88 and 28,323

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Solution

The fourth proportional to 48,475.18, 66,873.88 and 28,323 is: 39,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,475.18 : 66,873.88 = 28,323 : x
  2. Step 2: Convert to fraction form
    48,475.18/66,873.88 = 28,323/x
  3. Step 3: Cross multiply
    48,475.18x = 66,873.88 × 28,323
  4. Step 4: Simplify right side
    48,475.18x = 1,894,068,832.43
  5. Step 5: Solve for x
    x = 1,894,068,832.43/48,475.18
  6. Step 6: Final answer
    x = 39,072.96

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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.