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Finding the Fourth Proportional to 79,427.60, 119,141.40 and 32,656.40

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Solution

The fourth proportional to 79,427.60, 119,141.40 and 32,656.40 is: 48,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,427.60 : 119,141.40 = 32,656.40 : x
  2. Step 2: Convert to fraction form
    79,427.60/119,141.40 = 32,656.40/x
  3. Step 3: Cross multiply
    79,427.60x = 119,141.40 × 32,656.40
  4. Step 4: Simplify right side
    79,427.60x = 3,890,729,214.96
  5. Step 5: Solve for x
    x = 3,890,729,214.96/79,427.60
  6. Step 6: Final answer
    x = 48,984.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.