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Finding the Fourth Proportional to 25,603.14, 38,404.68 and 7,135.14

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Solution

The fourth proportional to 25,603.14, 38,404.68 and 7,135.14 is: 10,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.14 : 38,404.68 = 7,135.14 : x
  2. Step 2: Convert to fraction form
    25,603.14/38,404.68 = 7,135.14/x
  3. Step 3: Cross multiply
    25,603.14x = 38,404.68 × 7,135.14
  4. Step 4: Simplify right side
    25,603.14x = 274,022,768.46
  5. Step 5: Solve for x
    x = 274,022,768.46/25,603.14
  6. Step 6: Final answer
    x = 10,702.70

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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.