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Finding the Fourth Proportional to 42,603.40, 63,914.70 and 25,064.20

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Solution

The fourth proportional to 42,603.40, 63,914.70 and 25,064.20 is: 37,601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,603.40 : 63,914.70 = 25,064.20 : x
  2. Step 2: Convert to fraction form
    42,603.40/63,914.70 = 25,064.20/x
  3. Step 3: Cross multiply
    42,603.40x = 63,914.70 × 25,064.20
  4. Step 4: Simplify right side
    42,603.40x = 1,601,970,823.74
  5. Step 5: Solve for x
    x = 1,601,970,823.74/42,603.40
  6. Step 6: Final answer
    x = 37,601.95

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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.