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Finding the Fourth Proportional to 55,709.40, 83,491.20 and 22,402.20

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Solution

The fourth proportional to 55,709.40, 83,491.20 and 22,402.20 is: 33,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,709.40 : 83,491.20 = 22,402.20 : x
  2. Step 2: Convert to fraction form
    55,709.40/83,491.20 = 22,402.20/x
  3. Step 3: Cross multiply
    55,709.40x = 83,491.20 × 22,402.20
  4. Step 4: Simplify right side
    55,709.40x = 1,870,386,560.64
  5. Step 5: Solve for x
    x = 1,870,386,560.64/55,709.40
  6. Step 6: Final answer
    x = 33,573.99

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1.5x scale

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.