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Finding the Fourth Proportional to 57,774.30, 79,720.47 and 32,279.58

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Solution

The fourth proportional to 57,774.30, 79,720.47 and 32,279.58 is: 44,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,774.30 : 79,720.47 = 32,279.58 : x
  2. Step 2: Convert to fraction form
    57,774.30/79,720.47 = 32,279.58/x
  3. Step 3: Cross multiply
    57,774.30x = 79,720.47 × 32,279.58
  4. Step 4: Simplify right side
    57,774.30x = 2,573,343,289.00
  5. Step 5: Solve for x
    x = 2,573,343,289.00/57,774.30
  6. Step 6: Final answer
    x = 44,541.31

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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.