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Finding the Fourth Proportional to 19,791,010.35, 29,686,515.53 and 19,791,010.35

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Solution

The fourth proportional to 19,791,010.35, 29,686,515.53 and 19,791,010.35 is: 29,686,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791,010.35 : 29,686,515.53 = 19,791,010.35 : x
  2. Step 2: Convert to fraction form
    19,791,010.35/29,686,515.53 = 19,791,010.35/x
  3. Step 3: Cross multiply
    19,791,010.35x = 29,686,515.53 × 19,791,010.35
  4. Step 4: Simplify right side
    19,791,010.35x = 587,526,136,010,710.75
  5. Step 5: Solve for x
    x = 587,526,136,010,710.75/19,791,010.35
  6. Step 6: Final answer
    x = 29,686,515.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.