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Finding the Fourth Proportional to 57,646.32, 79,569.65 and 33,780.68

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Solution

The fourth proportional to 57,646.32, 79,569.65 and 33,780.68 is: 46,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,646.32 : 79,569.65 = 33,780.68 : x
  2. Step 2: Convert to fraction form
    57,646.32/79,569.65 = 33,780.68/x
  3. Step 3: Cross multiply
    57,646.32x = 79,569.65 × 33,780.68
  4. Step 4: Simplify right side
    57,646.32x = 2,687,916,884.36
  5. Step 5: Solve for x
    x = 2,687,916,884.36/57,646.32
  6. Step 6: Final answer
    x = 46,627.73

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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.