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Finding the Fourth Proportional to 55,368.42, 83,065.80 and 17,928.50

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Solution

The fourth proportional to 55,368.42, 83,065.80 and 17,928.50 is: 26,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.42 : 83,065.80 = 17,928.50 : x
  2. Step 2: Convert to fraction form
    55,368.42/83,065.80 = 17,928.50/x
  3. Step 3: Cross multiply
    55,368.42x = 83,065.80 × 17,928.50
  4. Step 4: Simplify right side
    55,368.42x = 1,489,245,195.30
  5. Step 5: Solve for x
    x = 1,489,245,195.30/55,368.42
  6. Step 6: Final answer
    x = 26,897.01

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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.