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Finding the Fourth Proportional to 9,187,627.84, 12,678,926.43 and 5,114,209.12

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Solution

The fourth proportional to 9,187,627.84, 12,678,926.43 and 5,114,209.12 is: 7,057,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187,627.84 : 12,678,926.43 = 5,114,209.12 : x
  2. Step 2: Convert to fraction form
    9,187,627.84/12,678,926.43 = 5,114,209.12/x
  3. Step 3: Cross multiply
    9,187,627.84x = 12,678,926.43 × 5,114,209.12
  4. Step 4: Simplify right side
    9,187,627.84x = 64,842,681,180,115.04
  5. Step 5: Solve for x
    x = 64,842,681,180,115.04/9,187,627.84
  6. Step 6: Final answer
    x = 7,057,608.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.