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Finding the Fourth Proportional to 9,387,986.40, 14,092,477.20 and 7,267,471.20

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Solution

The fourth proportional to 9,387,986.40, 14,092,477.20 and 7,267,471.20 is: 10,909,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387,986.40 : 14,092,477.20 = 7,267,471.20 : x
  2. Step 2: Convert to fraction form
    9,387,986.40/14,092,477.20 = 7,267,471.20/x
  3. Step 3: Cross multiply
    9,387,986.40x = 14,092,477.20 × 7,267,471.20
  4. Step 4: Simplify right side
    9,387,986.40x = 102,416,672,187,656.64
  5. Step 5: Solve for x
    x = 102,416,672,187,656.64/9,387,986.40
  6. Step 6: Final answer
    x = 10,909,333.25

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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.