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Finding the Fourth Proportional to 66,396.13, 99,623.59 and 34,798.66

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Solution

The fourth proportional to 66,396.13, 99,623.59 and 34,798.66 is: 52,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,396.13 : 99,623.59 = 34,798.66 : x
  2. Step 2: Convert to fraction form
    66,396.13/99,623.59 = 34,798.66/x
  3. Step 3: Cross multiply
    66,396.13x = 99,623.59 × 34,798.66
  4. Step 4: Simplify right side
    66,396.13x = 3,466,767,100.33
  5. Step 5: Solve for x
    x = 3,466,767,100.33/66,396.13
  6. Step 6: Final answer
    x = 52,213.39

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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.