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Finding the Fourth Proportional to 11,798,728.32, 17,701,766.88 and 4,225,759.68

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Solution

The fourth proportional to 11,798,728.32, 17,701,766.88 and 4,225,759.68 is: 6,339,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798,728.32 : 17,701,766.88 = 4,225,759.68 : x
  2. Step 2: Convert to fraction form
    11,798,728.32/17,701,766.88 = 4,225,759.68/x
  3. Step 3: Cross multiply
    11,798,728.32x = 17,701,766.88 × 4,225,759.68
  4. Step 4: Simplify right side
    11,798,728.32x = 74,803,412,746,263.39
  5. Step 5: Solve for x
    x = 74,803,412,746,263.39/11,798,728.32
  6. Step 6: Final answer
    x = 6,339,955.52

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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.