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Finding the Fourth Proportional to 48,491.65, 72,813.98 and 28,857.84

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Solution

The fourth proportional to 48,491.65, 72,813.98 and 28,857.84 is: 43,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,491.65 : 72,813.98 = 28,857.84 : x
  2. Step 2: Convert to fraction form
    48,491.65/72,813.98 = 28,857.84/x
  3. Step 3: Cross multiply
    48,491.65x = 72,813.98 × 28,857.84
  4. Step 4: Simplify right side
    48,491.65x = 2,101,254,184.60
  5. Step 5: Solve for x
    x = 2,101,254,184.60/48,491.65
  6. Step 6: Final answer
    x = 43,332.29

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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.