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Finding the Fourth Proportional to 19,224.55, 28,790.65 and 9,839.89

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Solution

The fourth proportional to 19,224.55, 28,790.65 and 9,839.89 is: 14,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.55 : 28,790.65 = 9,839.89 : x
  2. Step 2: Convert to fraction form
    19,224.55/28,790.65 = 9,839.89/x
  3. Step 3: Cross multiply
    19,224.55x = 28,790.65 × 9,839.89
  4. Step 4: Simplify right side
    19,224.55x = 283,296,829.03
  5. Step 5: Solve for x
    x = 283,296,829.03/19,224.55
  6. Step 6: Final answer
    x = 14,736.20

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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.