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Finding the Fourth Proportional to 21,963.04, 32,948.70 and 8,816.44

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Solution

The fourth proportional to 21,963.04, 32,948.70 and 8,816.44 is: 13,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.04 : 32,948.70 = 8,816.44 : x
  2. Step 2: Convert to fraction form
    21,963.04/32,948.70 = 8,816.44/x
  3. Step 3: Cross multiply
    21,963.04x = 32,948.70 × 8,816.44
  4. Step 4: Simplify right side
    21,963.04x = 290,490,236.63
  5. Step 5: Solve for x
    x = 290,490,236.63/21,963.04
  6. Step 6: Final answer
    x = 13,226.32

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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.