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Finding the Fourth Proportional to 48,495.04, 66,913.13 and 28,348.03

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Solution

The fourth proportional to 48,495.04, 66,913.13 and 28,348.03 is: 39,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,495.04 : 66,913.13 = 28,348.03 : x
  2. Step 2: Convert to fraction form
    48,495.04/66,913.13 = 28,348.03/x
  3. Step 3: Cross multiply
    48,495.04x = 66,913.13 × 28,348.03
  4. Step 4: Simplify right side
    48,495.04x = 1,896,855,035.30
  5. Step 5: Solve for x
    x = 1,896,855,035.30/48,495.04
  6. Step 6: Final answer
    x = 39,114.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.