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Finding the Fourth Proportional to 11,843,339.60, 17,765,009.40 and 10,745,028.20

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Solution

The fourth proportional to 11,843,339.60, 17,765,009.40 and 10,745,028.20 is: 16,117,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843,339.60 : 17,765,009.40 = 10,745,028.20 : x
  2. Step 2: Convert to fraction form
    11,843,339.60/17,765,009.40 = 10,745,028.20/x
  3. Step 3: Cross multiply
    11,843,339.60x = 17,765,009.40 × 10,745,028.20
  4. Step 4: Simplify right side
    11,843,339.60x = 190,885,526,976,265.06
  5. Step 5: Solve for x
    x = 190,885,526,976,265.06/11,843,339.60
  6. Step 6: Final answer
    x = 16,117,542.30

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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.