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Finding the Fourth Proportional to 25,379.32, 38,068.98 and 7,848.76

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Solution

The fourth proportional to 25,379.32, 38,068.98 and 7,848.76 is: 11,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.32 : 38,068.98 = 7,848.76 : x
  2. Step 2: Convert to fraction form
    25,379.32/38,068.98 = 7,848.76/x
  3. Step 3: Cross multiply
    25,379.32x = 38,068.98 × 7,848.76
  4. Step 4: Simplify right side
    25,379.32x = 298,794,287.46
  5. Step 5: Solve for x
    x = 298,794,287.46/25,379.32
  6. Step 6: Final answer
    x = 11,773.14

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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.