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Finding the Fourth Proportional to 14,944.99, 20,626.08 and 9,655.20

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Solution

The fourth proportional to 14,944.99, 20,626.08 and 9,655.20 is: 13,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,944.99 : 20,626.08 = 9,655.20 : x
  2. Step 2: Convert to fraction form
    14,944.99/20,626.08 = 9,655.20/x
  3. Step 3: Cross multiply
    14,944.99x = 20,626.08 × 9,655.20
  4. Step 4: Simplify right side
    14,944.99x = 199,148,927.62
  5. Step 5: Solve for x
    x = 199,148,927.62/14,944.99
  6. Step 6: Final answer
    x = 13,325.46

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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.