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Finding the Fourth Proportional to 5,373.20, 7,415.88 and 5,021.84

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Solution

The fourth proportional to 5,373.20, 7,415.88 and 5,021.84 is: 6,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.20 : 7,415.88 = 5,021.84 : x
  2. Step 2: Convert to fraction form
    5,373.20/7,415.88 = 5,021.84/x
  3. Step 3: Cross multiply
    5,373.20x = 7,415.88 × 5,021.84
  4. Step 4: Simplify right side
    5,373.20x = 37,241,362.82
  5. Step 5: Solve for x
    x = 37,241,362.82/5,373.20
  6. Step 6: Final answer
    x = 6,930.95

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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.