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Finding the Fourth Proportional to 19,575.89, 29,363.83 and 5,724.89

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Solution

The fourth proportional to 19,575.89, 29,363.83 and 5,724.89 is: 8,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.89 : 29,363.83 = 5,724.89 : x
  2. Step 2: Convert to fraction form
    19,575.89/29,363.83 = 5,724.89/x
  3. Step 3: Cross multiply
    19,575.89x = 29,363.83 × 5,724.89
  4. Step 4: Simplify right side
    19,575.89x = 168,104,535.60
  5. Step 5: Solve for x
    x = 168,104,535.60/19,575.89
  6. Step 6: Final answer
    x = 8,587.33

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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.