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Finding the Fourth Proportional to 25,801.67, 35,612.66 and 15,735.67

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Solution

The fourth proportional to 25,801.67, 35,612.66 and 15,735.67 is: 21,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,801.67 : 35,612.66 = 15,735.67 : x
  2. Step 2: Convert to fraction form
    25,801.67/35,612.66 = 15,735.67/x
  3. Step 3: Cross multiply
    25,801.67x = 35,612.66 × 15,735.67
  4. Step 4: Simplify right side
    25,801.67x = 560,389,065.58
  5. Step 5: Solve for x
    x = 560,389,065.58/25,801.67
  6. Step 6: Final answer
    x = 21,719.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.