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Finding the Fourth Proportional to 48,702.80, 73,140.60 and 37,636.40

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Solution

The fourth proportional to 48,702.80, 73,140.60 and 37,636.40 is: 56,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,702.80 : 73,140.60 = 37,636.40 : x
  2. Step 2: Convert to fraction form
    48,702.80/73,140.60 = 37,636.40/x
  3. Step 3: Cross multiply
    48,702.80x = 73,140.60 × 37,636.40
  4. Step 4: Simplify right side
    48,702.80x = 2,752,748,877.84
  5. Step 5: Solve for x
    x = 2,752,748,877.84/48,702.80
  6. Step 6: Final answer
    x = 56,521.37

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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.