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Finding the Fourth Proportional to 18,684,109.35, 28,026,164.03 and 18,684,109.35

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Solution

The fourth proportional to 18,684,109.35, 28,026,164.03 and 18,684,109.35 is: 28,026,164.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,109.35 : 28,026,164.03 = 18,684,109.35 : x
  2. Step 2: Convert to fraction form
    18,684,109.35/28,026,164.03 = 18,684,109.35/x
  3. Step 3: Cross multiply
    18,684,109.35x = 28,026,164.03 × 18,684,109.35
  4. Step 4: Simplify right side
    18,684,109.35x = 523,643,913,304,136.12
  5. Step 5: Solve for x
    x = 523,643,913,304,136.12/18,684,109.35
  6. Step 6: Final answer
    x = 28,026,164.03

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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.