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Finding the Fourth Proportional to 28,977,963.40, 43,372,466.70 and 28,977,963.40

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Solution

The fourth proportional to 28,977,963.40, 43,372,466.70 and 28,977,963.40 is: 43,372,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,963.40 : 43,372,466.70 = 28,977,963.40 : x
  2. Step 2: Convert to fraction form
    28,977,963.40/43,372,466.70 = 28,977,963.40/x
  3. Step 3: Cross multiply
    28,977,963.40x = 43,372,466.70 × 28,977,963.40
  4. Step 4: Simplify right side
    28,977,963.40x = 1,256,845,752,600,318.75
  5. Step 5: Solve for x
    x = 1,256,845,752,600,318.75/28,977,963.40
  6. Step 6: Final answer
    x = 43,372,466.70

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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.