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Finding the Fourth Proportional to 7,435.84, 10,261.92 and 4,123.84

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Solution

The fourth proportional to 7,435.84, 10,261.92 and 4,123.84 is: 5,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.84 : 10,261.92 = 4,123.84 : x
  2. Step 2: Convert to fraction form
    7,435.84/10,261.92 = 4,123.84/x
  3. Step 3: Cross multiply
    7,435.84x = 10,261.92 × 4,123.84
  4. Step 4: Simplify right side
    7,435.84x = 42,318,516.17
  5. Step 5: Solve for x
    x = 42,318,516.17/7,435.84
  6. Step 6: Final answer
    x = 5,691.15

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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.