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Finding the Third Proportional to 1,428,630.75 and 2,157,526.13

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Solution

The third proportional to 1,428,630.75 and 2,157,526.13 is: 3,258,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,630.75 : 2,157,526.13 = 2,157,526.13 : x
  2. Step 2: Convert to fraction form
    1,428,630.75/2,157,526.13 = 2,157,526.13/x
  3. Step 3: Cross multiply
    1,428,630.75x = 2,157,526.13 × 2,157,526.13
  4. Step 4: Simplify right side
    1,428,630.75x = 4,654,918,980,057.52
  5. Step 5: Solve for x
    x = 4,654,918,980,057.52/1,428,630.75
  6. Step 6: Final answer
    x = 3,258,307.98

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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.