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Finding the Fourth Proportional to 19,653.17, 27,117.15 and 11,693.84

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Solution

The fourth proportional to 19,653.17, 27,117.15 and 11,693.84 is: 16,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.17 : 27,117.15 = 11,693.84 : x
  2. Step 2: Convert to fraction form
    19,653.17/27,117.15 = 11,693.84/x
  3. Step 3: Cross multiply
    19,653.17x = 27,117.15 × 11,693.84
  4. Step 4: Simplify right side
    19,653.17x = 317,103,433.92
  5. Step 5: Solve for x
    x = 317,103,433.92/19,653.17
  6. Step 6: Final answer
    x = 16,134.98

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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.