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Finding the Fourth Proportional to 19,259.76, 28,876.84 and 6,946.16

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Solution

The fourth proportional to 19,259.76, 28,876.84 and 6,946.16 is: 10,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.76 : 28,876.84 = 6,946.16 : x
  2. Step 2: Convert to fraction form
    19,259.76/28,876.84 = 6,946.16/x
  3. Step 3: Cross multiply
    19,259.76x = 28,876.84 × 6,946.16
  4. Step 4: Simplify right side
    19,259.76x = 200,583,150.93
  5. Step 5: Solve for x
    x = 200,583,150.93/19,259.76
  6. Step 6: Final answer
    x = 10,414.62

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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.