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Finding the Fourth Proportional to 65,500.19, 90,390.27 and 35,692.19

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Solution

The fourth proportional to 65,500.19, 90,390.27 and 35,692.19 is: 49,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,500.19 : 90,390.27 = 35,692.19 : x
  2. Step 2: Convert to fraction form
    65,500.19/90,390.27 = 35,692.19/x
  3. Step 3: Cross multiply
    65,500.19x = 90,390.27 × 35,692.19
  4. Step 4: Simplify right side
    65,500.19x = 3,226,226,690.99
  5. Step 5: Solve for x
    x = 3,226,226,690.99/65,500.19
  6. Step 6: Final answer
    x = 49,255.23

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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.