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Finding the Fourth Proportional to 25,927.20, 38,890.08 and 7,459.20

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Solution

The fourth proportional to 25,927.20, 38,890.08 and 7,459.20 is: 11,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.20 : 38,890.08 = 7,459.20 : x
  2. Step 2: Convert to fraction form
    25,927.20/38,890.08 = 7,459.20/x
  3. Step 3: Cross multiply
    25,927.20x = 38,890.08 × 7,459.20
  4. Step 4: Simplify right side
    25,927.20x = 290,088,884.74
  5. Step 5: Solve for x
    x = 290,088,884.74/25,927.20
  6. Step 6: Final answer
    x = 11,188.59

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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.