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Finding the Fourth Proportional to 15,238.90, 22,851.48 and 6,918.58

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Solution

The fourth proportional to 15,238.90, 22,851.48 and 6,918.58 is: 10,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.90 : 22,851.48 = 6,918.58 : x
  2. Step 2: Convert to fraction form
    15,238.90/22,851.48 = 6,918.58/x
  3. Step 3: Cross multiply
    15,238.90x = 22,851.48 × 6,918.58
  4. Step 4: Simplify right side
    15,238.90x = 158,099,792.50
  5. Step 5: Solve for x
    x = 158,099,792.50/15,238.90
  6. Step 6: Final answer
    x = 10,374.75

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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.