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Finding the Third Proportional to 1,316,221.31 and 1,983,668.06

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Solution

The third proportional to 1,316,221.31 and 1,983,668.06 is: 2,989,572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,221.31 : 1,983,668.06 = 1,983,668.06 : x
  2. Step 2: Convert to fraction form
    1,316,221.31/1,983,668.06 = 1,983,668.06/x
  3. Step 3: Cross multiply
    1,316,221.31x = 1,983,668.06 × 1,983,668.06
  4. Step 4: Simplify right side
    1,316,221.31x = 3,934,938,982,182.50
  5. Step 5: Solve for x
    x = 3,934,938,982,182.50/1,316,221.31
  6. Step 6: Final answer
    x = 2,989,572.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.