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Finding the Fourth Proportional to 9,322,616.93, 12,865,857.16 and 5,651,688.23

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Solution

The fourth proportional to 9,322,616.93, 12,865,857.16 and 5,651,688.23 is: 7,799,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322,616.93 : 12,865,857.16 = 5,651,688.23 : x
  2. Step 2: Convert to fraction form
    9,322,616.93/12,865,857.16 = 5,651,688.23/x
  3. Step 3: Cross multiply
    9,322,616.93x = 12,865,857.16 × 5,651,688.23
  4. Step 4: Simplify right side
    9,322,616.93x = 72,713,813,415,703.94
  5. Step 5: Solve for x
    x = 72,713,813,415,703.94/9,322,616.93
  6. Step 6: Final answer
    x = 7,799,721.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.