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Finding the Third Proportional to 28,778,891,608 and 64,174,982,960

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Solution

The third proportional to 28,778,891,608 and 64,174,982,960 is: 143,105,874,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,891,608 : 64,174,982,960 = 64,174,982,960 : x
  2. Step 2: Convert to fraction form
    28,778,891,608/64,174,982,960 = 64,174,982,960/x
  3. Step 3: Cross multiply
    28,778,891,608x = 64,174,982,960 × 64,174,982,960
  4. Step 4: Simplify right side
    28,778,891,608x = 4,118,428,437,916,290,121,728
  5. Step 5: Solve for x
    x = 4,118,428,437,916,290,121,728/28,778,891,608
  6. Step 6: Final answer
    x = 143,105,874,055.67

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.