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Finding the Fourth Proportional to 55,882.62, 77,055.03 and 40,748.58

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Solution

The fourth proportional to 55,882.62, 77,055.03 and 40,748.58 is: 56,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,882.62 : 77,055.03 = 40,748.58 : x
  2. Step 2: Convert to fraction form
    55,882.62/77,055.03 = 40,748.58/x
  3. Step 3: Cross multiply
    55,882.62x = 77,055.03 × 40,748.58
  4. Step 4: Simplify right side
    55,882.62x = 3,139,883,054.36
  5. Step 5: Solve for x
    x = 3,139,883,054.36/55,882.62
  6. Step 6: Final answer
    x = 56,187.11

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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.