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Finding the Fourth Proportional to 7,900.62, 10,897.71 and 5,246.94

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Solution

The fourth proportional to 7,900.62, 10,897.71 and 5,246.94 is: 7,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.62 : 10,897.71 = 5,246.94 : x
  2. Step 2: Convert to fraction form
    7,900.62/10,897.71 = 5,246.94/x
  3. Step 3: Cross multiply
    7,900.62x = 10,897.71 × 5,246.94
  4. Step 4: Simplify right side
    7,900.62x = 57,179,630.51
  5. Step 5: Solve for x
    x = 57,179,630.51/7,900.62
  6. Step 6: Final answer
    x = 7,237.36

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1.5x scale

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.