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Finding the Fourth Proportional to 7,404.28, 10,216.93 and 4,755.28

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Solution

The fourth proportional to 7,404.28, 10,216.93 and 4,755.28 is: 6,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.28 : 10,216.93 = 4,755.28 : x
  2. Step 2: Convert to fraction form
    7,404.28/10,216.93 = 4,755.28/x
  3. Step 3: Cross multiply
    7,404.28x = 10,216.93 × 4,755.28
  4. Step 4: Simplify right side
    7,404.28x = 48,584,362.89
  5. Step 5: Solve for x
    x = 48,584,362.89/7,404.28
  6. Step 6: Final answer
    x = 6,561.66

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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.