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Finding the Fourth Proportional to 12,141.99, 16,756.47 and 6,837.12

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Solution

The fourth proportional to 12,141.99, 16,756.47 and 6,837.12 is: 9,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.99 : 16,756.47 = 6,837.12 : x
  2. Step 2: Convert to fraction form
    12,141.99/16,756.47 = 6,837.12/x
  3. Step 3: Cross multiply
    12,141.99x = 16,756.47 × 6,837.12
  4. Step 4: Simplify right side
    12,141.99x = 114,565,996.17
  5. Step 5: Solve for x
    x = 114,565,996.17/12,141.99
  6. Step 6: Final answer
    x = 9,435.52

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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.