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Finding the Fourth Proportional to 20,407.41, 30,602.76 and 6,362.68

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Solution

The fourth proportional to 20,407.41, 30,602.76 and 6,362.68 is: 9,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.41 : 30,602.76 = 6,362.68 : x
  2. Step 2: Convert to fraction form
    20,407.41/30,602.76 = 6,362.68/x
  3. Step 3: Cross multiply
    20,407.41x = 30,602.76 × 6,362.68
  4. Step 4: Simplify right side
    20,407.41x = 194,715,569.00
  5. Step 5: Solve for x
    x = 194,715,569.00/20,407.41
  6. Step 6: Final answer
    x = 9,541.42

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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.