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Finding the Fourth Proportional to 15,858.29, 23,787.66 and 7,539.16

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Solution

The fourth proportional to 15,858.29, 23,787.66 and 7,539.16 is: 11,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.29 : 23,787.66 = 7,539.16 : x
  2. Step 2: Convert to fraction form
    15,858.29/23,787.66 = 7,539.16/x
  3. Step 3: Cross multiply
    15,858.29x = 23,787.66 × 7,539.16
  4. Step 4: Simplify right side
    15,858.29x = 179,338,974.77
  5. Step 5: Solve for x
    x = 179,338,974.77/15,858.29
  6. Step 6: Final answer
    x = 11,308.85

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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.