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Finding the Fourth Proportional to 7,151.08, 9,863.22 and 4,913.32

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Solution

The fourth proportional to 7,151.08, 9,863.22 and 4,913.32 is: 6,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.08 : 9,863.22 = 4,913.32 : x
  2. Step 2: Convert to fraction form
    7,151.08/9,863.22 = 4,913.32/x
  3. Step 3: Cross multiply
    7,151.08x = 9,863.22 × 4,913.32
  4. Step 4: Simplify right side
    7,151.08x = 48,461,156.09
  5. Step 5: Solve for x
    x = 48,461,156.09/7,151.08
  6. Step 6: Final answer
    x = 6,776.76

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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.