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Finding the Fourth Proportional to 55,368.65, 83,066.21 and 17,928.77

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Solution

The fourth proportional to 55,368.65, 83,066.21 and 17,928.77 is: 26,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.65 : 83,066.21 = 17,928.77 : x
  2. Step 2: Convert to fraction form
    55,368.65/83,066.21 = 17,928.77/x
  3. Step 3: Cross multiply
    55,368.65x = 83,066.21 × 17,928.77
  4. Step 4: Simplify right side
    55,368.65x = 1,489,274,973.86
  5. Step 5: Solve for x
    x = 1,489,274,973.86/55,368.65
  6. Step 6: Final answer
    x = 26,897.44

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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.