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Finding the Third Proportional to 2,118,889.13 and 4,598,990.16

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Solution

The third proportional to 2,118,889.13 and 4,598,990.16 is: 9,981,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,889.13 : 4,598,990.16 = 4,598,990.16 : x
  2. Step 2: Convert to fraction form
    2,118,889.13/4,598,990.16 = 4,598,990.16/x
  3. Step 3: Cross multiply
    2,118,889.13x = 4,598,990.16 × 4,598,990.16
  4. Step 4: Simplify right side
    2,118,889.13x = 21,150,710,457,284.40
  5. Step 5: Solve for x
    x = 21,150,710,457,284.40/2,118,889.13
  6. Step 6: Final answer
    x = 9,981,980.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.