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Finding the Fourth Proportional to 7,968.03, 10,995.42 and 4,430.53

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Solution

The fourth proportional to 7,968.03, 10,995.42 and 4,430.53 is: 6,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.03 : 10,995.42 = 4,430.53 : x
  2. Step 2: Convert to fraction form
    7,968.03/10,995.42 = 4,430.53/x
  3. Step 3: Cross multiply
    7,968.03x = 10,995.42 × 4,430.53
  4. Step 4: Simplify right side
    7,968.03x = 48,715,538.17
  5. Step 5: Solve for x
    x = 48,715,538.17/7,968.03
  6. Step 6: Final answer
    x = 6,113.87

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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.