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Finding the Fourth Proportional to 10,653,753.32, 15,978,880.38 and 4,586,851.70

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Solution

The fourth proportional to 10,653,753.32, 15,978,880.38 and 4,586,851.70 is: 6,879,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653,753.32 : 15,978,880.38 = 4,586,851.70 : x
  2. Step 2: Convert to fraction form
    10,653,753.32/15,978,880.38 = 4,586,851.70/x
  3. Step 3: Cross multiply
    10,653,753.32x = 15,978,880.38 × 4,586,851.70
  4. Step 4: Simplify right side
    10,653,753.32x = 73,292,754,635,099.66
  5. Step 5: Solve for x
    x = 73,292,754,635,099.66/10,653,753.32
  6. Step 6: Final answer
    x = 6,879,524.28

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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.