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Finding the Fourth Proportional to 14,903.82, 22,347.09 and 6,128.82

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Solution

The fourth proportional to 14,903.82, 22,347.09 and 6,128.82 is: 9,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.82 : 22,347.09 = 6,128.82 : x
  2. Step 2: Convert to fraction form
    14,903.82/22,347.09 = 6,128.82/x
  3. Step 3: Cross multiply
    14,903.82x = 22,347.09 × 6,128.82
  4. Step 4: Simplify right side
    14,903.82x = 136,961,292.13
  5. Step 5: Solve for x
    x = 136,961,292.13/14,903.82
  6. Step 6: Final answer
    x = 9,189.68

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1.5x scale

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.