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Finding the Fourth Proportional to 65,415.24, 90,300.12 and 44,223.24

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Solution

The fourth proportional to 65,415.24, 90,300.12 and 44,223.24 is: 61,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,415.24 : 90,300.12 = 44,223.24 : x
  2. Step 2: Convert to fraction form
    65,415.24/90,300.12 = 44,223.24/x
  3. Step 3: Cross multiply
    65,415.24x = 90,300.12 × 44,223.24
  4. Step 4: Simplify right side
    65,415.24x = 3,993,363,878.79
  5. Step 5: Solve for x
    x = 3,993,363,878.79/65,415.24
  6. Step 6: Final answer
    x = 61,046.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.