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Finding the Fourth Proportional to 21,799.49, 32,702.30 and 7,003.44

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Solution

The fourth proportional to 21,799.49, 32,702.30 and 7,003.44 is: 10,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.49 : 32,702.30 = 7,003.44 : x
  2. Step 2: Convert to fraction form
    21,799.49/32,702.30 = 7,003.44/x
  3. Step 3: Cross multiply
    21,799.49x = 32,702.30 × 7,003.44
  4. Step 4: Simplify right side
    21,799.49x = 229,028,595.91
  5. Step 5: Solve for x
    x = 229,028,595.91/21,799.49
  6. Step 6: Final answer
    x = 10,506.15

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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.