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Finding the Fourth Proportional to 53,644.60, 80,466.90 and 14,205.70

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Solution

The fourth proportional to 53,644.60, 80,466.90 and 14,205.70 is: 21,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,644.60 : 80,466.90 = 14,205.70 : x
  2. Step 2: Convert to fraction form
    53,644.60/80,466.90 = 14,205.70/x
  3. Step 3: Cross multiply
    53,644.60x = 80,466.90 × 14,205.70
  4. Step 4: Simplify right side
    53,644.60x = 1,143,088,641.33
  5. Step 5: Solve for x
    x = 1,143,088,641.33/53,644.60
  6. Step 6: Final answer
    x = 21,308.55

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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.