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Finding the Fourth Proportional to 25,653.34, 35,401.77 and 15,043.15

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Solution

The fourth proportional to 25,653.34, 35,401.77 and 15,043.15 is: 20,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.34 : 35,401.77 = 15,043.15 : x
  2. Step 2: Convert to fraction form
    25,653.34/35,401.77 = 15,043.15/x
  3. Step 3: Cross multiply
    25,653.34x = 35,401.77 × 15,043.15
  4. Step 4: Simplify right side
    25,653.34x = 532,554,136.38
  5. Step 5: Solve for x
    x = 532,554,136.38/25,653.34
  6. Step 6: Final answer
    x = 20,759.64

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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.