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Finding the Fourth Proportional to 13,155.95, 19,737.41 and 6,914.23

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Solution

The fourth proportional to 13,155.95, 19,737.41 and 6,914.23 is: 10,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.95 : 19,737.41 = 6,914.23 : x
  2. Step 2: Convert to fraction form
    13,155.95/19,737.41 = 6,914.23/x
  3. Step 3: Cross multiply
    13,155.95x = 19,737.41 × 6,914.23
  4. Step 4: Simplify right side
    13,155.95x = 136,468,908.43
  5. Step 5: Solve for x
    x = 136,468,908.43/13,155.95
  6. Step 6: Final answer
    x = 10,373.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.