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Finding the Fourth Proportional to 28,829.04, 39,763.08 and 22,038.41

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Solution

The fourth proportional to 28,829.04, 39,763.08 and 22,038.41 is: 30,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.04 : 39,763.08 = 22,038.41 : x
  2. Step 2: Convert to fraction form
    28,829.04/39,763.08 = 22,038.41/x
  3. Step 3: Cross multiply
    28,829.04x = 39,763.08 × 22,038.41
  4. Step 4: Simplify right side
    28,829.04x = 876,314,861.09
  5. Step 5: Solve for x
    x = 876,314,861.09/28,829.04
  6. Step 6: Final answer
    x = 30,396.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.