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Finding the Fourth Proportional to 25,913.80, 38,861.16 and 9,269.32

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Solution

The fourth proportional to 25,913.80, 38,861.16 and 9,269.32 is: 13,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,913.80 : 38,861.16 = 9,269.32 : x
  2. Step 2: Convert to fraction form
    25,913.80/38,861.16 = 9,269.32/x
  3. Step 3: Cross multiply
    25,913.80x = 38,861.16 × 9,269.32
  4. Step 4: Simplify right side
    25,913.80x = 360,216,527.61
  5. Step 5: Solve for x
    x = 360,216,527.61/25,913.80
  6. Step 6: Final answer
    x = 13,900.57

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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.