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Finding the Fourth Proportional to 11,700,811.10, 17,551,216.65 and 10,655,716.70

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Solution

The fourth proportional to 11,700,811.10, 17,551,216.65 and 10,655,716.70 is: 15,983,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700,811.10 : 17,551,216.65 = 10,655,716.70 : x
  2. Step 2: Convert to fraction form
    11,700,811.10/17,551,216.65 = 10,655,716.70/x
  3. Step 3: Cross multiply
    11,700,811.10x = 17,551,216.65 × 10,655,716.70
  4. Step 4: Simplify right side
    11,700,811.10x = 187,020,792,362,723.03
  5. Step 5: Solve for x
    x = 187,020,792,362,723.03/11,700,811.10
  6. Step 6: Final answer
    x = 15,983,575.05

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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.