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Finding the Fourth Proportional to 11,856,009.60, 16,643,203.20 and 11,856,009.60

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Solution

The fourth proportional to 11,856,009.60, 16,643,203.20 and 11,856,009.60 is: 16,643,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856,009.60 : 16,643,203.20 = 11,856,009.60 : x
  2. Step 2: Convert to fraction form
    11,856,009.60/16,643,203.20 = 11,856,009.60/x
  3. Step 3: Cross multiply
    11,856,009.60x = 16,643,203.20 × 11,856,009.60
  4. Step 4: Simplify right side
    11,856,009.60x = 197,321,976,913,950.72
  5. Step 5: Solve for x
    x = 197,321,976,913,950.72/11,856,009.60
  6. Step 6: Final answer
    x = 16,643,203.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.