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Finding the Fourth Proportional to 21,873.78, 32,807.03 and 7,093.31

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Solution

The fourth proportional to 21,873.78, 32,807.03 and 7,093.31 is: 10,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.78 : 32,807.03 = 7,093.31 : x
  2. Step 2: Convert to fraction form
    21,873.78/32,807.03 = 7,093.31/x
  3. Step 3: Cross multiply
    21,873.78x = 32,807.03 × 7,093.31
  4. Step 4: Simplify right side
    21,873.78x = 232,710,234.47
  5. Step 5: Solve for x
    x = 232,710,234.47/21,873.78
  6. Step 6: Final answer
    x = 10,638.78

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1.5x scale

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.