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Finding the Fourth Proportional to 7,262.15, 10,021.88 and 4,076.15

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Solution

The fourth proportional to 7,262.15, 10,021.88 and 4,076.15 is: 5,625.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.15 : 10,021.88 = 4,076.15 : x
  2. Step 2: Convert to fraction form
    7,262.15/10,021.88 = 4,076.15/x
  3. Step 3: Cross multiply
    7,262.15x = 10,021.88 × 4,076.15
  4. Step 4: Simplify right side
    7,262.15x = 40,850,615.67
  5. Step 5: Solve for x
    x = 40,850,615.67/7,262.15
  6. Step 6: Final answer
    x = 5,625.14

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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.