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Finding the Third Proportional to 15,602,904 and 20,708,878.50

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Solution

The third proportional to 15,602,904 and 20,708,878.50 is: 27,485,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602,904 : 20,708,878.50 = 20,708,878.50 : x
  2. Step 2: Convert to fraction form
    15,602,904/20,708,878.50 = 20,708,878.50/x
  3. Step 3: Cross multiply
    15,602,904x = 20,708,878.50 × 20,708,878.50
  4. Step 4: Simplify right side
    15,602,904x = 428,857,648,727,762.25
  5. Step 5: Solve for x
    x = 428,857,648,727,762.25/15,602,904
  6. Step 6: Final answer
    x = 27,485,758.34

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.