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Finding the Fourth Proportional to 69,035.16, 103,684.02 and 42,922.38

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Solution

The fourth proportional to 69,035.16, 103,684.02 and 42,922.38 is: 64,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,035.16 : 103,684.02 = 42,922.38 : x
  2. Step 2: Convert to fraction form
    69,035.16/103,684.02 = 42,922.38/x
  3. Step 3: Cross multiply
    69,035.16x = 103,684.02 × 42,922.38
  4. Step 4: Simplify right side
    69,035.16x = 4,450,364,906.37
  5. Step 5: Solve for x
    x = 4,450,364,906.37/69,035.16
  6. Step 6: Final answer
    x = 64,465.19

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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.