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Finding the Fourth Proportional to 56,607.99, 78,118.20 and 32,736.90

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Solution

The fourth proportional to 56,607.99, 78,118.20 and 32,736.90 is: 45,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,607.99 : 78,118.20 = 32,736.90 : x
  2. Step 2: Convert to fraction form
    56,607.99/78,118.20 = 32,736.90/x
  3. Step 3: Cross multiply
    56,607.99x = 78,118.20 × 32,736.90
  4. Step 4: Simplify right side
    56,607.99x = 2,557,347,701.58
  5. Step 5: Solve for x
    x = 2,557,347,701.58/56,607.99
  6. Step 6: Final answer
    x = 45,176.44

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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.