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Finding the Fourth Proportional to 15,864,307.80, 23,759,136.90 and 15,864,307.80

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Solution

The fourth proportional to 15,864,307.80, 23,759,136.90 and 15,864,307.80 is: 23,759,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864,307.80 : 23,759,136.90 = 15,864,307.80 : x
  2. Step 2: Convert to fraction form
    15,864,307.80/23,759,136.90 = 15,864,307.80/x
  3. Step 3: Cross multiply
    15,864,307.80x = 23,759,136.90 × 15,864,307.80
  4. Step 4: Simplify right side
    15,864,307.80x = 376,922,260,843,937.81
  5. Step 5: Solve for x
    x = 376,922,260,843,937.81/15,864,307.80
  6. Step 6: Final answer
    x = 23,759,136.90

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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.