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Finding the Third Proportional to 2,990,722.50 and 4,386,165.19

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Solution

The third proportional to 2,990,722.50 and 4,386,165.19 is: 6,432,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,722.50 : 4,386,165.19 = 4,386,165.19 : x
  2. Step 2: Convert to fraction form
    2,990,722.50/4,386,165.19 = 4,386,165.19/x
  3. Step 3: Cross multiply
    2,990,722.50x = 4,386,165.19 × 4,386,165.19
  4. Step 4: Simplify right side
    2,990,722.50x = 19,238,445,052,036.91
  5. Step 5: Solve for x
    x = 19,238,445,052,036.91/2,990,722.50
  6. Step 6: Final answer
    x = 6,432,708.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.