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Finding the Fourth Proportional to 18,806,522.70, 28,209,784.05 and 6,036,192.30

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Solution

The fourth proportional to 18,806,522.70, 28,209,784.05 and 6,036,192.30 is: 9,054,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806,522.70 : 28,209,784.05 = 6,036,192.30 : x
  2. Step 2: Convert to fraction form
    18,806,522.70/28,209,784.05 = 6,036,192.30/x
  3. Step 3: Cross multiply
    18,806,522.70x = 28,209,784.05 × 6,036,192.30
  4. Step 4: Simplify right side
    18,806,522.70x = 170,279,681,267,272.81
  5. Step 5: Solve for x
    x = 170,279,681,267,272.81/18,806,522.70
  6. Step 6: Final answer
    x = 9,054,288.45

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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.