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Finding the Fourth Proportional to 9,684,678.54, 13,364,425.17 and 5,551,746.69

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Solution

The fourth proportional to 9,684,678.54, 13,364,425.17 and 5,551,746.69 is: 7,661,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,684,678.54 : 13,364,425.17 = 5,551,746.69 : x
  2. Step 2: Convert to fraction form
    9,684,678.54/13,364,425.17 = 5,551,746.69/x
  3. Step 3: Cross multiply
    9,684,678.54x = 13,364,425.17 × 5,551,746.69
  4. Step 4: Simplify right side
    9,684,678.54x = 74,195,903,201,300.19
  5. Step 5: Solve for x
    x = 74,195,903,201,300.19/9,684,678.54
  6. Step 6: Final answer
    x = 7,661,163.24

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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.