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Finding the Fourth Proportional to 7,561.92, 10,435.90 and 4,204.76

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Solution

The fourth proportional to 7,561.92, 10,435.90 and 4,204.76 is: 5,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.92 : 10,435.90 = 4,204.76 : x
  2. Step 2: Convert to fraction form
    7,561.92/10,435.90 = 4,204.76/x
  3. Step 3: Cross multiply
    7,561.92x = 10,435.90 × 4,204.76
  4. Step 4: Simplify right side
    7,561.92x = 43,880,454.88
  5. Step 5: Solve for x
    x = 43,880,454.88/7,561.92
  6. Step 6: Final answer
    x = 5,802.82

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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.