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Finding the Fourth Proportional to 13,903.77, 20,852.01 and 4,040.40

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Solution

The fourth proportional to 13,903.77, 20,852.01 and 4,040.40 is: 6,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.77 : 20,852.01 = 4,040.40 : x
  2. Step 2: Convert to fraction form
    13,903.77/20,852.01 = 4,040.40/x
  3. Step 3: Cross multiply
    13,903.77x = 20,852.01 × 4,040.40
  4. Step 4: Simplify right side
    13,903.77x = 84,250,461.20
  5. Step 5: Solve for x
    x = 84,250,461.20/13,903.77
  6. Step 6: Final answer
    x = 6,059.54

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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.