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Finding the Fourth Proportional to 25,644.84, 38,464.08 and 6,926.40

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Solution

The fourth proportional to 25,644.84, 38,464.08 and 6,926.40 is: 10,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.84 : 38,464.08 = 6,926.40 : x
  2. Step 2: Convert to fraction form
    25,644.84/38,464.08 = 6,926.40/x
  3. Step 3: Cross multiply
    25,644.84x = 38,464.08 × 6,926.40
  4. Step 4: Simplify right side
    25,644.84x = 266,417,603.71
  5. Step 5: Solve for x
    x = 266,417,603.71/25,644.84
  6. Step 6: Final answer
    x = 10,388.74

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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.