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Finding the Fourth Proportional to 57,585.83, 79,471.15 and 33,720.19

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Solution

The fourth proportional to 57,585.83, 79,471.15 and 33,720.19 is: 46,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,585.83 : 79,471.15 = 33,720.19 : x
  2. Step 2: Convert to fraction form
    57,585.83/79,471.15 = 33,720.19/x
  3. Step 3: Cross multiply
    57,585.83x = 79,471.15 × 33,720.19
  4. Step 4: Simplify right side
    57,585.83x = 2,679,782,277.52
  5. Step 5: Solve for x
    x = 2,679,782,277.52/57,585.83
  6. Step 6: Final answer
    x = 46,535.45

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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.