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Finding the Fourth Proportional to 25,858.62, 38,788.11 and 9,219.33

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Solution

The fourth proportional to 25,858.62, 38,788.11 and 9,219.33 is: 13,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,858.62 : 38,788.11 = 9,219.33 : x
  2. Step 2: Convert to fraction form
    25,858.62/38,788.11 = 9,219.33/x
  3. Step 3: Cross multiply
    25,858.62x = 38,788.11 × 9,219.33
  4. Step 4: Simplify right side
    25,858.62x = 357,600,386.17
  5. Step 5: Solve for x
    x = 357,600,386.17/25,858.62
  6. Step 6: Final answer
    x = 13,829.06

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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.