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Finding the Fourth Proportional to 9,366,326.40, 14,059,987.20 and 7,245,811.20

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Solution

The fourth proportional to 9,366,326.40, 14,059,987.20 and 7,245,811.20 is: 10,876,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366,326.40 : 14,059,987.20 = 7,245,811.20 : x
  2. Step 2: Convert to fraction form
    9,366,326.40/14,059,987.20 = 7,245,811.20/x
  3. Step 3: Cross multiply
    9,366,326.40x = 14,059,987.20 × 7,245,811.20
  4. Step 4: Simplify right side
    9,366,326.40x = 101,876,012,725,616.64
  5. Step 5: Solve for x
    x = 101,876,012,725,616.64/9,366,326.40
  6. Step 6: Final answer
    x = 10,876,837.77

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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.