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Finding the Fourth Proportional to 55,806.72, 83,700.88 and 18,367.28

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Solution

The fourth proportional to 55,806.72, 83,700.88 and 18,367.28 is: 27,547.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,806.72 : 83,700.88 = 18,367.28 : x
  2. Step 2: Convert to fraction form
    55,806.72/83,700.88 = 18,367.28/x
  3. Step 3: Cross multiply
    55,806.72x = 83,700.88 × 18,367.28
  4. Step 4: Simplify right side
    55,806.72x = 1,537,357,499.21
  5. Step 5: Solve for x
    x = 1,537,357,499.21/55,806.72
  6. Step 6: Final answer
    x = 27,547.89

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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.