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Finding the Fourth Proportional to 13,926.01, 20,878.05 and 6,901.19

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Solution

The fourth proportional to 13,926.01, 20,878.05 and 6,901.19 is: 10,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.01 : 20,878.05 = 6,901.19 : x
  2. Step 2: Convert to fraction form
    13,926.01/20,878.05 = 6,901.19/x
  3. Step 3: Cross multiply
    13,926.01x = 20,878.05 × 6,901.19
  4. Step 4: Simplify right side
    13,926.01x = 144,083,389.88
  5. Step 5: Solve for x
    x = 144,083,389.88/13,926.01
  6. Step 6: Final answer
    x = 10,346.35

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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.