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Finding the Fourth Proportional to 9,866,917.16, 14,793,640.44 and 5,256,592.68

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Solution

The fourth proportional to 9,866,917.16, 14,793,640.44 and 5,256,592.68 is: 7,881,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866,917.16 : 14,793,640.44 = 5,256,592.68 : x
  2. Step 2: Convert to fraction form
    9,866,917.16/14,793,640.44 = 5,256,592.68/x
  3. Step 3: Cross multiply
    9,866,917.16x = 14,793,640.44 × 5,256,592.68
  4. Step 4: Simplify right side
    9,866,917.16x = 77,764,142,047,455.97
  5. Step 5: Solve for x
    x = 77,764,142,047,455.97/9,866,917.16
  6. Step 6: Final answer
    x = 7,881,300.79

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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.