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Finding the Fourth Proportional to 21,823.77, 32,737.77 and 8,673.21

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Solution

The fourth proportional to 21,823.77, 32,737.77 and 8,673.21 is: 13,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.77 : 32,737.77 = 8,673.21 : x
  2. Step 2: Convert to fraction form
    21,823.77/32,737.77 = 8,673.21/x
  3. Step 3: Cross multiply
    21,823.77x = 32,737.77 × 8,673.21
  4. Step 4: Simplify right side
    21,823.77x = 283,941,554.14
  5. Step 5: Solve for x
    x = 283,941,554.14/21,823.77
  6. Step 6: Final answer
    x = 13,010.66

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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.