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Finding the Fourth Proportional to 57,810.72, 79,779.84 and 32,660.64

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Solution

The fourth proportional to 57,810.72, 79,779.84 and 32,660.64 is: 45,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,810.72 : 79,779.84 = 32,660.64 : x
  2. Step 2: Convert to fraction form
    57,810.72/79,779.84 = 32,660.64/x
  3. Step 3: Cross multiply
    57,810.72x = 79,779.84 × 32,660.64
  4. Step 4: Simplify right side
    57,810.72x = 2,605,660,633.50
  5. Step 5: Solve for x
    x = 2,605,660,633.50/57,810.72
  6. Step 6: Final answer
    x = 45,072.27

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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.