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Finding the Fourth Proportional to 84,447.60, 126,671.40 and 22,124.40

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Solution

The fourth proportional to 84,447.60, 126,671.40 and 22,124.40 is: 33,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,447.60 : 126,671.40 = 22,124.40 : x
  2. Step 2: Convert to fraction form
    84,447.60/126,671.40 = 22,124.40/x
  3. Step 3: Cross multiply
    84,447.60x = 126,671.40 × 22,124.40
  4. Step 4: Simplify right side
    84,447.60x = 2,802,528,722.16
  5. Step 5: Solve for x
    x = 2,802,528,722.16/84,447.60
  6. Step 6: Final answer
    x = 33,186.60

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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.