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Finding the Fourth Proportional to 62,447.40, 86,172.02 and 35,221.99

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Solution

The fourth proportional to 62,447.40, 86,172.02 and 35,221.99 is: 48,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,447.40 : 86,172.02 = 35,221.99 : x
  2. Step 2: Convert to fraction form
    62,447.40/86,172.02 = 35,221.99/x
  3. Step 3: Cross multiply
    62,447.40x = 86,172.02 × 35,221.99
  4. Step 4: Simplify right side
    62,447.40x = 3,035,149,595.86
  5. Step 5: Solve for x
    x = 3,035,149,595.86/62,447.40
  6. Step 6: Final answer
    x = 48,603.30

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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.