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Finding the Fourth Proportional to 18,365,927.60, 27,548,891.40 and 16,381,881.20

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Solution

The fourth proportional to 18,365,927.60, 27,548,891.40 and 16,381,881.20 is: 24,572,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365,927.60 : 27,548,891.40 = 16,381,881.20 : x
  2. Step 2: Convert to fraction form
    18,365,927.60/27,548,891.40 = 16,381,881.20/x
  3. Step 3: Cross multiply
    18,365,927.60x = 27,548,891.40 × 16,381,881.20
  4. Step 4: Simplify right side
    18,365,927.60x = 451,302,666,106,501.62
  5. Step 5: Solve for x
    x = 451,302,666,106,501.62/18,365,927.60
  6. Step 6: Final answer
    x = 24,572,821.80

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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.