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Finding the Fourth Proportional to 15,954.47, 23,895.25 and 7,640.32

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Solution

The fourth proportional to 15,954.47, 23,895.25 and 7,640.32 is: 11,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.47 : 23,895.25 = 7,640.32 : x
  2. Step 2: Convert to fraction form
    15,954.47/23,895.25 = 7,640.32/x
  3. Step 3: Cross multiply
    15,954.47x = 23,895.25 × 7,640.32
  4. Step 4: Simplify right side
    15,954.47x = 182,567,356.48
  5. Step 5: Solve for x
    x = 182,567,356.48/15,954.47
  6. Step 6: Final answer
    x = 11,443.02

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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.