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Finding the Fourth Proportional to 65,603.70, 98,415.15 and 34,441.30

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Solution

The fourth proportional to 65,603.70, 98,415.15 and 34,441.30 is: 51,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,603.70 : 98,415.15 = 34,441.30 : x
  2. Step 2: Convert to fraction form
    65,603.70/98,415.15 = 34,441.30/x
  3. Step 3: Cross multiply
    65,603.70x = 98,415.15 × 34,441.30
  4. Step 4: Simplify right side
    65,603.70x = 3,389,545,705.70
  5. Step 5: Solve for x
    x = 3,389,545,705.70/65,603.70
  6. Step 6: Final answer
    x = 51,666.99

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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.