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Finding the Fourth Proportional to 19,370.76, 26,741.52 and 13,709.94

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Solution

The fourth proportional to 19,370.76, 26,741.52 and 13,709.94 is: 18,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.76 : 26,741.52 = 13,709.94 : x
  2. Step 2: Convert to fraction form
    19,370.76/26,741.52 = 13,709.94/x
  3. Step 3: Cross multiply
    19,370.76x = 26,741.52 × 13,709.94
  4. Step 4: Simplify right side
    19,370.76x = 366,624,634.71
  5. Step 5: Solve for x
    x = 366,624,634.71/19,370.76
  6. Step 6: Final answer
    x = 18,926.70

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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.