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Finding the Fourth Proportional to 25,395.55, 35,045.90 and 13,910.42

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Solution

The fourth proportional to 25,395.55, 35,045.90 and 13,910.42 is: 19,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,395.55 : 35,045.90 = 13,910.42 : x
  2. Step 2: Convert to fraction form
    25,395.55/35,045.90 = 13,910.42/x
  3. Step 3: Cross multiply
    25,395.55x = 35,045.90 × 13,910.42
  4. Step 4: Simplify right side
    25,395.55x = 487,503,188.28
  5. Step 5: Solve for x
    x = 487,503,188.28/25,395.55
  6. Step 6: Final answer
    x = 19,196.40

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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.