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Finding the Fourth Proportional to 62,857.82, 94,289.66 and 20,741.60

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Solution

The fourth proportional to 62,857.82, 94,289.66 and 20,741.60 is: 31,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,857.82 : 94,289.66 = 20,741.60 : x
  2. Step 2: Convert to fraction form
    62,857.82/94,289.66 = 20,741.60/x
  3. Step 3: Cross multiply
    62,857.82x = 94,289.66 × 20,741.60
  4. Step 4: Simplify right side
    62,857.82x = 1,955,718,411.86
  5. Step 5: Solve for x
    x = 1,955,718,411.86/62,857.82
  6. Step 6: Final answer
    x = 31,113.37

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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.