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Finding the Fourth Proportional to 74,603.30, 111,904.95 and 25,355.30

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Solution

The fourth proportional to 74,603.30, 111,904.95 and 25,355.30 is: 38,032.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,603.30 : 111,904.95 = 25,355.30 : x
  2. Step 2: Convert to fraction form
    74,603.30/111,904.95 = 25,355.30/x
  3. Step 3: Cross multiply
    74,603.30x = 111,904.95 × 25,355.30
  4. Step 4: Simplify right side
    74,603.30x = 2,837,383,578.74
  5. Step 5: Solve for x
    x = 2,837,383,578.74/74,603.30
  6. Step 6: Final answer
    x = 38,032.95

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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.