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Finding the Fourth Proportional to 18,362,297.60, 27,480,460.80 and 16,850,643.20

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Solution

The fourth proportional to 18,362,297.60, 27,480,460.80 and 16,850,643.20 is: 25,218,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362,297.60 : 27,480,460.80 = 16,850,643.20 : x
  2. Step 2: Convert to fraction form
    18,362,297.60/27,480,460.80 = 16,850,643.20/x
  3. Step 3: Cross multiply
    18,362,297.60x = 27,480,460.80 × 16,850,643.20
  4. Step 4: Simplify right side
    18,362,297.60x = 463,063,439,912,386.56
  5. Step 5: Solve for x
    x = 463,063,439,912,386.56/18,362,297.60
  6. Step 6: Final answer
    x = 25,218,164.41

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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.