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Finding the Third Proportional to 19,554,390 and 28,732,263

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Solution

The third proportional to 19,554,390 and 28,732,263 is: 42,217,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,554,390 : 28,732,263 = 28,732,263 : x
  2. Step 2: Convert to fraction form
    19,554,390/28,732,263 = 28,732,263/x
  3. Step 3: Cross multiply
    19,554,390x = 28,732,263 × 28,732,263
  4. Step 4: Simplify right side
    19,554,390x = 825,542,937,101,169
  5. Step 5: Solve for x
    x = 825,542,937,101,169/19,554,390
  6. Step 6: Final answer
    x = 42,217,780.10

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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.