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Finding the Fourth Proportional to 25,655.94, 38,491.20 and 9,868.23

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Solution

The fourth proportional to 25,655.94, 38,491.20 and 9,868.23 is: 14,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.94 : 38,491.20 = 9,868.23 : x
  2. Step 2: Convert to fraction form
    25,655.94/38,491.20 = 9,868.23/x
  3. Step 3: Cross multiply
    25,655.94x = 38,491.20 × 9,868.23
  4. Step 4: Simplify right side
    25,655.94x = 379,840,014.58
  5. Step 5: Solve for x
    x = 379,840,014.58/25,655.94
  6. Step 6: Final answer
    x = 14,805.15

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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.