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Finding the Fourth Proportional to 25,941.72, 38,920.78 and 9,301.32

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Solution

The fourth proportional to 25,941.72, 38,920.78 and 9,301.32 is: 13,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,941.72 : 38,920.78 = 9,301.32 : x
  2. Step 2: Convert to fraction form
    25,941.72/38,920.78 = 9,301.32/x
  3. Step 3: Cross multiply
    25,941.72x = 38,920.78 × 9,301.32
  4. Step 4: Simplify right side
    25,941.72x = 362,014,629.43
  5. Step 5: Solve for x
    x = 362,014,629.43/25,941.72
  6. Step 6: Final answer
    x = 13,954.92

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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.