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Finding the Fourth Proportional to 34,790,792.55, 48,009,978.38 and 19,321,873.64

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Solution

The fourth proportional to 34,790,792.55, 48,009,978.38 and 19,321,873.64 is: 26,663,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,790,792.55 : 48,009,978.38 = 19,321,873.64 : x
  2. Step 2: Convert to fraction form
    34,790,792.55/48,009,978.38 = 19,321,873.64/x
  3. Step 3: Cross multiply
    34,790,792.55x = 48,009,978.38 × 19,321,873.64
  4. Step 4: Simplify right side
    34,790,792.55x = 927,642,735,380,832.75
  5. Step 5: Solve for x
    x = 927,642,735,380,832.75/34,790,792.55
  6. Step 6: Final answer
    x = 26,663,455.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.