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Finding the Fourth Proportional to 14,889,993.60, 22,334,990.40 and 11,904,009.60

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Solution

The fourth proportional to 14,889,993.60, 22,334,990.40 and 11,904,009.60 is: 17,856,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889,993.60 : 22,334,990.40 = 11,904,009.60 : x
  2. Step 2: Convert to fraction form
    14,889,993.60/22,334,990.40 = 11,904,009.60/x
  3. Step 3: Cross multiply
    14,889,993.60x = 22,334,990.40 × 11,904,009.60
  4. Step 4: Simplify right side
    14,889,993.60x = 265,875,940,137,507.81
  5. Step 5: Solve for x
    x = 265,875,940,137,507.81/14,889,993.60
  6. Step 6: Final answer
    x = 17,856,014.40

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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.