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Finding the Fourth Proportional to 58,283.73, 87,423.53 and 18,839.81

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Solution

The fourth proportional to 58,283.73, 87,423.53 and 18,839.81 is: 28,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,283.73 : 87,423.53 = 18,839.81 : x
  2. Step 2: Convert to fraction form
    58,283.73/87,423.53 = 18,839.81/x
  3. Step 3: Cross multiply
    58,283.73x = 87,423.53 × 18,839.81
  4. Step 4: Simplify right side
    58,283.73x = 1,647,042,819.09
  5. Step 5: Solve for x
    x = 1,647,042,819.09/58,283.73
  6. Step 6: Final answer
    x = 28,259.05

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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.