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Finding the Fourth Proportional to 47,703.75, 71,555.63 and 14,871.75

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Solution

The fourth proportional to 47,703.75, 71,555.63 and 14,871.75 is: 22,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,703.75 : 71,555.63 = 14,871.75 : x
  2. Step 2: Convert to fraction form
    47,703.75/71,555.63 = 14,871.75/x
  3. Step 3: Cross multiply
    47,703.75x = 71,555.63 × 14,871.75
  4. Step 4: Simplify right side
    47,703.75x = 1,064,157,366.09
  5. Step 5: Solve for x
    x = 1,064,157,366.09/47,703.75
  6. Step 6: Final answer
    x = 22,307.63

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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.