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Finding the Fourth Proportional to 13,903.74, 20,857.65 and 4,041.74

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Solution

The fourth proportional to 13,903.74, 20,857.65 and 4,041.74 is: 6,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.74 : 20,857.65 = 4,041.74 : x
  2. Step 2: Convert to fraction form
    13,903.74/20,857.65 = 4,041.74/x
  3. Step 3: Cross multiply
    13,903.74x = 20,857.65 × 4,041.74
  4. Step 4: Simplify right side
    13,903.74x = 84,301,235.30
  5. Step 5: Solve for x
    x = 84,301,235.30/13,903.74
  6. Step 6: Final answer
    x = 6,063.21

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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.