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Finding the Fourth Proportional to 66,476.70, 99,779.85 and 33,234.30

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Solution

The fourth proportional to 66,476.70, 99,779.85 and 33,234.30 is: 49,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.70 : 99,779.85 = 33,234.30 : x
  2. Step 2: Convert to fraction form
    66,476.70/99,779.85 = 33,234.30/x
  3. Step 3: Cross multiply
    66,476.70x = 99,779.85 × 33,234.30
  4. Step 4: Simplify right side
    66,476.70x = 3,316,113,468.86
  5. Step 5: Solve for x
    x = 3,316,113,468.86/66,476.70
  6. Step 6: Final answer
    x = 49,883.85

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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.