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Finding the Fourth Proportional to 55,855.80, 77,063.94 and 36,730.08

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Solution

The fourth proportional to 55,855.80, 77,063.94 and 36,730.08 is: 50,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.80 : 77,063.94 = 36,730.08 : x
  2. Step 2: Convert to fraction form
    55,855.80/77,063.94 = 36,730.08/x
  3. Step 3: Cross multiply
    55,855.80x = 77,063.94 × 36,730.08
  4. Step 4: Simplify right side
    55,855.80x = 2,830,564,681.32
  5. Step 5: Solve for x
    x = 2,830,564,681.32/55,855.80
  6. Step 6: Final answer
    x = 50,676.29

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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.