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Finding the Fourth Proportional to 10,395.70, 14,347.81 and 5,918.83

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Solution

The fourth proportional to 10,395.70, 14,347.81 and 5,918.83 is: 8,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,395.70 : 14,347.81 = 5,918.83 : x
  2. Step 2: Convert to fraction form
    10,395.70/14,347.81 = 5,918.83/x
  3. Step 3: Cross multiply
    10,395.70x = 14,347.81 × 5,918.83
  4. Step 4: Simplify right side
    10,395.70x = 84,922,248.26
  5. Step 5: Solve for x
    x = 84,922,248.26/10,395.70
  6. Step 6: Final answer
    x = 8,168.98

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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.