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Finding the Fourth Proportional to 7,220.98, 9,968.93 and 4,534.99

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Solution

The fourth proportional to 7,220.98, 9,968.93 and 4,534.99 is: 6,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.98 : 9,968.93 = 4,534.99 : x
  2. Step 2: Convert to fraction form
    7,220.98/9,968.93 = 4,534.99/x
  3. Step 3: Cross multiply
    7,220.98x = 9,968.93 × 4,534.99
  4. Step 4: Simplify right side
    7,220.98x = 45,208,997.86
  5. Step 5: Solve for x
    x = 45,208,997.86/7,220.98
  6. Step 6: Final answer
    x = 6,260.78

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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.