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Finding the Fourth Proportional to 61,692.12, 85,130.46 and 34,830.90

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Solution

The fourth proportional to 61,692.12, 85,130.46 and 34,830.90 is: 48,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,692.12 : 85,130.46 = 34,830.90 : x
  2. Step 2: Convert to fraction form
    61,692.12/85,130.46 = 34,830.90/x
  3. Step 3: Cross multiply
    61,692.12x = 85,130.46 × 34,830.90
  4. Step 4: Simplify right side
    61,692.12x = 2,965,170,539.21
  5. Step 5: Solve for x
    x = 2,965,170,539.21/61,692.12
  6. Step 6: Final answer
    x = 48,064.01

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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.