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Finding the Fourth Proportional to 28,978,045.90, 43,467,068.85 and 13,052,797.90

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Solution

The fourth proportional to 28,978,045.90, 43,467,068.85 and 13,052,797.90 is: 19,579,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,045.90 : 43,467,068.85 = 13,052,797.90 : x
  2. Step 2: Convert to fraction form
    28,978,045.90/43,467,068.85 = 13,052,797.90/x
  3. Step 3: Cross multiply
    28,978,045.90x = 43,467,068.85 × 13,052,797.90
  4. Step 4: Simplify right side
    28,978,045.90x = 567,366,865,004,435.50
  5. Step 5: Solve for x
    x = 567,366,865,004,435.50/28,978,045.90
  6. Step 6: Final answer
    x = 19,579,196.85

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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.