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Finding the Fourth Proportional to 11,235.84, 15,506.84 and 6,761.92

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Solution

The fourth proportional to 11,235.84, 15,506.84 and 6,761.92 is: 9,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.84 : 15,506.84 = 6,761.92 : x
  2. Step 2: Convert to fraction form
    11,235.84/15,506.84 = 6,761.92/x
  3. Step 3: Cross multiply
    11,235.84x = 15,506.84 × 6,761.92
  4. Step 4: Simplify right side
    11,235.84x = 104,856,011.53
  5. Step 5: Solve for x
    x = 104,856,011.53/11,235.84
  6. Step 6: Final answer
    x = 9,332.28

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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.