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Finding the Fourth Proportional to 19,304.59, 26,640.79 and 10,806.50

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Solution

The fourth proportional to 19,304.59, 26,640.79 and 10,806.50 is: 14,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304.59 : 26,640.79 = 10,806.50 : x
  2. Step 2: Convert to fraction form
    19,304.59/26,640.79 = 10,806.50/x
  3. Step 3: Cross multiply
    19,304.59x = 26,640.79 × 10,806.50
  4. Step 4: Simplify right side
    19,304.59x = 287,893,697.14
  5. Step 5: Solve for x
    x = 287,893,697.14/19,304.59
  6. Step 6: Final answer
    x = 14,913.23

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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.