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Finding the Fourth Proportional to 25,983.84, 35,860.68 and 15,377.16

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Solution

The fourth proportional to 25,983.84, 35,860.68 and 15,377.16 is: 21,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.84 : 35,860.68 = 15,377.16 : x
  2. Step 2: Convert to fraction form
    25,983.84/35,860.68 = 15,377.16/x
  3. Step 3: Cross multiply
    25,983.84x = 35,860.68 × 15,377.16
  4. Step 4: Simplify right side
    25,983.84x = 551,435,414.07
  5. Step 5: Solve for x
    x = 551,435,414.07/25,983.84
  6. Step 6: Final answer
    x = 21,222.24

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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.