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Finding the Fourth Proportional to 81,516.66, 122,275.53 and 22,358.58

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Solution

The fourth proportional to 81,516.66, 122,275.53 and 22,358.58 is: 33,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,516.66 : 122,275.53 = 22,358.58 : x
  2. Step 2: Convert to fraction form
    81,516.66/122,275.53 = 22,358.58/x
  3. Step 3: Cross multiply
    81,516.66x = 122,275.53 × 22,358.58
  4. Step 4: Simplify right side
    81,516.66x = 2,733,907,219.55
  5. Step 5: Solve for x
    x = 2,733,907,219.55/81,516.66
  6. Step 6: Final answer
    x = 33,538.02

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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.