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Finding the Fourth Proportional to 48,364.74, 72,532.53 and 18,775.98

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Solution

The fourth proportional to 48,364.74, 72,532.53 and 18,775.98 is: 28,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,364.74 : 72,532.53 = 18,775.98 : x
  2. Step 2: Convert to fraction form
    48,364.74/72,532.53 = 18,775.98/x
  3. Step 3: Cross multiply
    48,364.74x = 72,532.53 × 18,775.98
  4. Step 4: Simplify right side
    48,364.74x = 1,361,869,332.63
  5. Step 5: Solve for x
    x = 1,361,869,332.63/48,364.74
  6. Step 6: Final answer
    x = 28,158.31

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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.