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Finding the Fourth Proportional to 32,878,728.90, 49,317,076.80 and 15,619,354.20

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Solution

The fourth proportional to 32,878,728.90, 49,317,076.80 and 15,619,354.20 is: 23,428,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,878,728.90 : 49,317,076.80 = 15,619,354.20 : x
  2. Step 2: Convert to fraction form
    32,878,728.90/49,317,076.80 = 15,619,354.20/x
  3. Step 3: Cross multiply
    32,878,728.90x = 49,317,076.80 × 15,619,354.20
  4. Step 4: Simplify right side
    32,878,728.90x = 770,300,890,647,802.50
  5. Step 5: Solve for x
    x = 770,300,890,647,802.50/32,878,728.90
  6. Step 6: Final answer
    x = 23,428,548.38

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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.