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Finding the Fourth Proportional to 48,622.78, 72,904.96 and 19,005.32

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Solution

The fourth proportional to 48,622.78, 72,904.96 and 19,005.32 is: 28,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,622.78 : 72,904.96 = 19,005.32 : x
  2. Step 2: Convert to fraction form
    48,622.78/72,904.96 = 19,005.32/x
  3. Step 3: Cross multiply
    48,622.78x = 72,904.96 × 19,005.32
  4. Step 4: Simplify right side
    48,622.78x = 1,385,582,094.39
  5. Step 5: Solve for x
    x = 1,385,582,094.39/48,622.78
  6. Step 6: Final answer
    x = 28,496.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.