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Finding the Fourth Proportional to 11,807.70, 16,292.91 and 7,562.49

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Solution

The fourth proportional to 11,807.70, 16,292.91 and 7,562.49 is: 10,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.70 : 16,292.91 = 7,562.49 : x
  2. Step 2: Convert to fraction form
    11,807.70/16,292.91 = 7,562.49/x
  3. Step 3: Cross multiply
    11,807.70x = 16,292.91 × 7,562.49
  4. Step 4: Simplify right side
    11,807.70x = 123,214,968.95
  5. Step 5: Solve for x
    x = 123,214,968.95/11,807.70
  6. Step 6: Final answer
    x = 10,435.14

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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.