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Finding the Fourth Proportional to 65,259.50, 90,058.20 and 35,451.50

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Solution

The fourth proportional to 65,259.50, 90,058.20 and 35,451.50 is: 48,923.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,259.50 : 90,058.20 = 35,451.50 : x
  2. Step 2: Convert to fraction form
    65,259.50/90,058.20 = 35,451.50/x
  3. Step 3: Cross multiply
    65,259.50x = 90,058.20 × 35,451.50
  4. Step 4: Simplify right side
    65,259.50x = 3,192,698,277.30
  5. Step 5: Solve for x
    x = 3,192,698,277.30/65,259.50
  6. Step 6: Final answer
    x = 48,923.12

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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.