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Finding the Fourth Proportional to 19,290.92, 28,929.03 and 6,808.62

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Solution

The fourth proportional to 19,290.92, 28,929.03 and 6,808.62 is: 10,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.92 : 28,929.03 = 6,808.62 : x
  2. Step 2: Convert to fraction form
    19,290.92/28,929.03 = 6,808.62/x
  3. Step 3: Cross multiply
    19,290.92x = 28,929.03 × 6,808.62
  4. Step 4: Simplify right side
    19,290.92x = 196,966,772.24
  5. Step 5: Solve for x
    x = 196,966,772.24/19,290.92
  6. Step 6: Final answer
    x = 10,210.34

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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.