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Finding the Fourth Proportional to 38,865.50, 53,634.39 and 22,098.50

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Solution

The fourth proportional to 38,865.50, 53,634.39 and 22,098.50 is: 30,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,865.50 : 53,634.39 = 22,098.50 : x
  2. Step 2: Convert to fraction form
    38,865.50/53,634.39 = 22,098.50/x
  3. Step 3: Cross multiply
    38,865.50x = 53,634.39 × 22,098.50
  4. Step 4: Simplify right side
    38,865.50x = 1,185,239,567.42
  5. Step 5: Solve for x
    x = 1,185,239,567.42/38,865.50
  6. Step 6: Final answer
    x = 30,495.93

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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.