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Finding the Fourth Proportional to 19,507.86, 26,914.14 and 11,008.94

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Solution

The fourth proportional to 19,507.86, 26,914.14 and 11,008.94 is: 15,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.86 : 26,914.14 = 11,008.94 : x
  2. Step 2: Convert to fraction form
    19,507.86/26,914.14 = 11,008.94/x
  3. Step 3: Cross multiply
    19,507.86x = 26,914.14 × 11,008.94
  4. Step 4: Simplify right side
    19,507.86x = 296,296,017.84
  5. Step 5: Solve for x
    x = 296,296,017.84/19,507.86
  6. Step 6: Final answer
    x = 15,188.55

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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.