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Finding the Fourth Proportional to 47,304.96, 70,978.40 and 25,112.99

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Solution

The fourth proportional to 47,304.96, 70,978.40 and 25,112.99 is: 37,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,304.96 : 70,978.40 = 25,112.99 : x
  2. Step 2: Convert to fraction form
    47,304.96/70,978.40 = 25,112.99/x
  3. Step 3: Cross multiply
    47,304.96x = 70,978.40 × 25,112.99
  4. Step 4: Simplify right side
    47,304.96x = 1,782,479,368.96
  5. Step 5: Solve for x
    x = 1,782,479,368.96/47,304.96
  6. Step 6: Final answer
    x = 37,680.60

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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.