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Finding the Fourth Proportional to 7,967.71, 10,995.18 and 4,430.86

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Solution

The fourth proportional to 7,967.71, 10,995.18 and 4,430.86 is: 6,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.71 : 10,995.18 = 4,430.86 : x
  2. Step 2: Convert to fraction form
    7,967.71/10,995.18 = 4,430.86/x
  3. Step 3: Cross multiply
    7,967.71x = 10,995.18 × 4,430.86
  4. Step 4: Simplify right side
    7,967.71x = 48,718,103.25
  5. Step 5: Solve for x
    x = 48,718,103.25/7,967.71
  6. Step 6: Final answer
    x = 6,114.44

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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.