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Finding the Fourth Proportional to 55,572.48, 83,357.76 and 18,636.48

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Solution

The fourth proportional to 55,572.48, 83,357.76 and 18,636.48 is: 27,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.48 : 83,357.76 = 18,636.48 : x
  2. Step 2: Convert to fraction form
    55,572.48/83,357.76 = 18,636.48/x
  3. Step 3: Cross multiply
    55,572.48x = 83,357.76 × 18,636.48
  4. Step 4: Simplify right side
    55,572.48x = 1,553,495,227.08
  5. Step 5: Solve for x
    x = 1,553,495,227.08/55,572.48
  6. Step 6: Final answer
    x = 27,954.40

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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.