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Finding the Fourth Proportional to 21,944, 32,916 and 5,528

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Solution

The fourth proportional to 21,944, 32,916 and 5,528 is: 8,292

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944 : 32,916 = 5,528 : x
  2. Step 2: Convert to fraction form
    21,944/32,916 = 5,528/x
  3. Step 3: Cross multiply
    21,944x = 32,916 × 5,528
  4. Step 4: Simplify right side
    21,944x = 181,959,648
  5. Step 5: Solve for x
    x = 181,959,648/21,944
  6. Step 6: Final answer
    x = 8,292

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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.