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Finding the Fourth Proportional to 29,788,987.80, 44,683,481.70 and 19,585,320.60

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Solution

The fourth proportional to 29,788,987.80, 44,683,481.70 and 19,585,320.60 is: 29,377,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,788,987.80 : 44,683,481.70 = 19,585,320.60 : x
  2. Step 2: Convert to fraction form
    29,788,987.80/44,683,481.70 = 19,585,320.60/x
  3. Step 3: Cross multiply
    29,788,987.80x = 44,683,481.70 × 19,585,320.60
  4. Step 4: Simplify right side
    29,788,987.80x = 875,140,314,618,733.12
  5. Step 5: Solve for x
    x = 875,140,314,618,733.12/29,788,987.80
  6. Step 6: Final answer
    x = 29,377,980.90

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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.