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Finding the Fourth Proportional to 47,169.88, 70,739.80 and 15,574.06

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Solution

The fourth proportional to 47,169.88, 70,739.80 and 15,574.06 is: 23,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,169.88 : 70,739.80 = 15,574.06 : x
  2. Step 2: Convert to fraction form
    47,169.88/70,739.80 = 15,574.06/x
  3. Step 3: Cross multiply
    47,169.88x = 70,739.80 × 15,574.06
  4. Step 4: Simplify right side
    47,169.88x = 1,101,705,889.59
  5. Step 5: Solve for x
    x = 1,101,705,889.59/47,169.88
  6. Step 6: Final answer
    x = 23,356.13

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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.