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Finding the Fourth Proportional to 18,084,843.60, 27,127,265.40 and 10,400,600.40

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Solution

The fourth proportional to 18,084,843.60, 27,127,265.40 and 10,400,600.40 is: 15,600,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084,843.60 : 27,127,265.40 = 10,400,600.40 : x
  2. Step 2: Convert to fraction form
    18,084,843.60/27,127,265.40 = 10,400,600.40/x
  3. Step 3: Cross multiply
    18,084,843.60x = 27,127,265.40 × 10,400,600.40
  4. Step 4: Simplify right side
    18,084,843.60x = 282,139,847,370,146.12
  5. Step 5: Solve for x
    x = 282,139,847,370,146.12/18,084,843.60
  6. Step 6: Final answer
    x = 15,600,900.60

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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.