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Finding the Fourth Proportional to 39,074.68, 53,922.90 and 22,307.68

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Solution

The fourth proportional to 39,074.68, 53,922.90 and 22,307.68 is: 30,784.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,074.68 : 53,922.90 = 22,307.68 : x
  2. Step 2: Convert to fraction form
    39,074.68/53,922.90 = 22,307.68/x
  3. Step 3: Cross multiply
    39,074.68x = 53,922.90 × 22,307.68
  4. Step 4: Simplify right side
    39,074.68x = 1,202,894,797.87
  5. Step 5: Solve for x
    x = 1,202,894,797.87/39,074.68
  6. Step 6: Final answer
    x = 30,784.51

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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.