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Finding the Third Proportional to 19,534,290 and 28,716,777

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Solution

The third proportional to 19,534,290 and 28,716,777 is: 42,215,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,534,290 : 28,716,777 = 28,716,777 : x
  2. Step 2: Convert to fraction form
    19,534,290/28,716,777 = 28,716,777/x
  3. Step 3: Cross multiply
    19,534,290x = 28,716,777 × 28,716,777
  4. Step 4: Simplify right side
    19,534,290x = 824,653,281,267,729
  5. Step 5: Solve for x
    x = 824,653,281,267,729/19,534,290
  6. Step 6: Final answer
    x = 42,215,677.22

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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.