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Finding the Fourth Proportional to 53,666.40, 80,434.80 and 27,357.60

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Solution

The fourth proportional to 53,666.40, 80,434.80 and 27,357.60 is: 41,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,666.40 : 80,434.80 = 27,357.60 : x
  2. Step 2: Convert to fraction form
    53,666.40/80,434.80 = 27,357.60/x
  3. Step 3: Cross multiply
    53,666.40x = 80,434.80 × 27,357.60
  4. Step 4: Simplify right side
    53,666.40x = 2,200,503,084.48
  5. Step 5: Solve for x
    x = 2,200,503,084.48/53,666.40
  6. Step 6: Final answer
    x = 41,003.37

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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.