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Finding the Fourth Proportional to 25,653.72, 38,466.18 and 9,009.12

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Solution

The fourth proportional to 25,653.72, 38,466.18 and 9,009.12 is: 13,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.72 : 38,466.18 = 9,009.12 : x
  2. Step 2: Convert to fraction form
    25,653.72/38,466.18 = 9,009.12/x
  3. Step 3: Cross multiply
    25,653.72x = 38,466.18 × 9,009.12
  4. Step 4: Simplify right side
    25,653.72x = 346,546,431.56
  5. Step 5: Solve for x
    x = 346,546,431.56/25,653.72
  6. Step 6: Final answer
    x = 13,508.62

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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.