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Finding the Third Proportional to 20,859,856.59 and 30,686,696.86

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Solution

The third proportional to 20,859,856.59 and 30,686,696.86 is: 45,142,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,856.59 : 30,686,696.86 = 30,686,696.86 : x
  2. Step 2: Convert to fraction form
    20,859,856.59/30,686,696.86 = 30,686,696.86/x
  3. Step 3: Cross multiply
    20,859,856.59x = 30,686,696.86 × 30,686,696.86
  4. Step 4: Simplify right side
    20,859,856.59x = 941,673,364,139,175.50
  5. Step 5: Solve for x
    x = 941,673,364,139,175.50/20,859,856.59
  6. Step 6: Final answer
    x = 45,142,849.37

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.