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Finding the Fourth Proportional to 25,898.79, 38,849.40 and 9,266.70

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Solution

The fourth proportional to 25,898.79, 38,849.40 and 9,266.70 is: 13,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,898.79 : 38,849.40 = 9,266.70 : x
  2. Step 2: Convert to fraction form
    25,898.79/38,849.40 = 9,266.70/x
  3. Step 3: Cross multiply
    25,898.79x = 38,849.40 × 9,266.70
  4. Step 4: Simplify right side
    25,898.79x = 360,005,734.98
  5. Step 5: Solve for x
    x = 360,005,734.98/25,898.79
  6. Step 6: Final answer
    x = 13,900.48

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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.