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Finding the Fourth Proportional to 55,689.04, 76,819.86 and 33,006.21

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Solution

The fourth proportional to 55,689.04, 76,819.86 and 33,006.21 is: 45,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,689.04 : 76,819.86 = 33,006.21 : x
  2. Step 2: Convert to fraction form
    55,689.04/76,819.86 = 33,006.21/x
  3. Step 3: Cross multiply
    55,689.04x = 76,819.86 × 33,006.21
  4. Step 4: Simplify right side
    55,689.04x = 2,535,532,431.33
  5. Step 5: Solve for x
    x = 2,535,532,431.33/55,689.04
  6. Step 6: Final answer
    x = 45,530.19

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1.5x scale

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.