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Finding the Fourth Proportional to 62,289.64, 85,912.14 and 39,632.32

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Solution

The fourth proportional to 62,289.64, 85,912.14 and 39,632.32 is: 54,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,289.64 : 85,912.14 = 39,632.32 : x
  2. Step 2: Convert to fraction form
    62,289.64/85,912.14 = 39,632.32/x
  3. Step 3: Cross multiply
    62,289.64x = 85,912.14 × 39,632.32
  4. Step 4: Simplify right side
    62,289.64x = 3,404,897,424.36
  5. Step 5: Solve for x
    x = 3,404,897,424.36/62,289.64
  6. Step 6: Final answer
    x = 54,662.34

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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.