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Finding the Fourth Proportional to 25,285,978.56, 34,894,649.52 and 13,683,541.92

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Solution

The fourth proportional to 25,285,978.56, 34,894,649.52 and 13,683,541.92 is: 18,883,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,285,978.56 : 34,894,649.52 = 13,683,541.92 : x
  2. Step 2: Convert to fraction form
    25,285,978.56/34,894,649.52 = 13,683,541.92/x
  3. Step 3: Cross multiply
    25,285,978.56x = 34,894,649.52 × 13,683,541.92
  4. Step 4: Simplify right side
    25,285,978.56x = 477,482,399,490,627.94
  5. Step 5: Solve for x
    x = 477,482,399,490,627.94/25,285,978.56
  6. Step 6: Final answer
    x = 18,883,287.37

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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.