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Finding the Fourth Proportional to 10,245.84, 15,360.12 and 4,086.48

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Solution

The fourth proportional to 10,245.84, 15,360.12 and 4,086.48 is: 6,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.84 : 15,360.12 = 4,086.48 : x
  2. Step 2: Convert to fraction form
    10,245.84/15,360.12 = 4,086.48/x
  3. Step 3: Cross multiply
    10,245.84x = 15,360.12 × 4,086.48
  4. Step 4: Simplify right side
    10,245.84x = 62,768,823.18
  5. Step 5: Solve for x
    x = 62,768,823.18/10,245.84
  6. Step 6: Final answer
    x = 6,126.27

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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.