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Finding the Third Proportional to 4,597,724 and 9,991,276

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Solution

The third proportional to 4,597,724 and 9,991,276 is: 21,711,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,597,724 : 9,991,276 = 9,991,276 : x
  2. Step 2: Convert to fraction form
    4,597,724/9,991,276 = 9,991,276/x
  3. Step 3: Cross multiply
    4,597,724x = 9,991,276 × 9,991,276
  4. Step 4: Simplify right side
    4,597,724x = 99,825,596,108,176
  5. Step 5: Solve for x
    x = 99,825,596,108,176/4,597,724
  6. Step 6: Final answer
    x = 21,711,959.25

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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.