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Finding the Fourth Proportional to 21,836.90, 32,755.35 and 7,046.30

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Solution

The fourth proportional to 21,836.90, 32,755.35 and 7,046.30 is: 10,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,836.90 : 32,755.35 = 7,046.30 : x
  2. Step 2: Convert to fraction form
    21,836.90/32,755.35 = 7,046.30/x
  3. Step 3: Cross multiply
    21,836.90x = 32,755.35 × 7,046.30
  4. Step 4: Simplify right side
    21,836.90x = 230,804,022.71
  5. Step 5: Solve for x
    x = 230,804,022.71/21,836.90
  6. Step 6: Final answer
    x = 10,569.45

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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.