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Finding the Fourth Proportional to 6,925.77, 9,560.65 and 5,389.22

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Solution

The fourth proportional to 6,925.77, 9,560.65 and 5,389.22 is: 7,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,925.77 : 9,560.65 = 5,389.22 : x
  2. Step 2: Convert to fraction form
    6,925.77/9,560.65 = 5,389.22/x
  3. Step 3: Cross multiply
    6,925.77x = 9,560.65 × 5,389.22
  4. Step 4: Simplify right side
    6,925.77x = 51,524,446.19
  5. Step 5: Solve for x
    x = 51,524,446.19/6,925.77
  6. Step 6: Final answer
    x = 7,439.53

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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.