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Finding the Fourth Proportional to 84,499.60, 126,749.40 and 22,176.40

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Solution

The fourth proportional to 84,499.60, 126,749.40 and 22,176.40 is: 33,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499.60 : 126,749.40 = 22,176.40 : x
  2. Step 2: Convert to fraction form
    84,499.60/126,749.40 = 22,176.40/x
  3. Step 3: Cross multiply
    84,499.60x = 126,749.40 × 22,176.40
  4. Step 4: Simplify right side
    84,499.60x = 2,810,845,394.16
  5. Step 5: Solve for x
    x = 2,810,845,394.16/84,499.60
  6. Step 6: Final answer
    x = 33,264.60

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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.