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Finding the Fourth Proportional to 17,903.84, 24,708.12 and 9,945.80

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Solution

The fourth proportional to 17,903.84, 24,708.12 and 9,945.80 is: 13,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,903.84 : 24,708.12 = 9,945.80 : x
  2. Step 2: Convert to fraction form
    17,903.84/24,708.12 = 9,945.80/x
  3. Step 3: Cross multiply
    17,903.84x = 24,708.12 × 9,945.80
  4. Step 4: Simplify right side
    17,903.84x = 245,742,019.90
  5. Step 5: Solve for x
    x = 245,742,019.90/17,903.84
  6. Step 6: Final answer
    x = 13,725.66

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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.