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Finding the Third Proportional to 1,990,152.28 and 4,352,929.88

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Solution

The third proportional to 1,990,152.28 and 4,352,929.88 is: 9,520,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,152.28 : 4,352,929.88 = 4,352,929.88 : x
  2. Step 2: Convert to fraction form
    1,990,152.28/4,352,929.88 = 4,352,929.88/x
  3. Step 3: Cross multiply
    1,990,152.28x = 4,352,929.88 × 4,352,929.88
  4. Step 4: Simplify right side
    1,990,152.28x = 18,947,998,496,667.52
  5. Step 5: Solve for x
    x = 18,947,998,496,667.52/1,990,152.28
  6. Step 6: Final answer
    x = 9,520,878.72

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.