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Finding the Fourth Proportional to 21,503.52, 32,243.04 and 7,456.32

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Solution

The fourth proportional to 21,503.52, 32,243.04 and 7,456.32 is: 11,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.52 : 32,243.04 = 7,456.32 : x
  2. Step 2: Convert to fraction form
    21,503.52/32,243.04 = 7,456.32/x
  3. Step 3: Cross multiply
    21,503.52x = 32,243.04 × 7,456.32
  4. Step 4: Simplify right side
    21,503.52x = 240,414,424.01
  5. Step 5: Solve for x
    x = 240,414,424.01/21,503.52
  6. Step 6: Final answer
    x = 11,180.24

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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.