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Finding the Fourth Proportional to 85,814.98, 118,415.12 and 47,573.46

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Solution

The fourth proportional to 85,814.98, 118,415.12 and 47,573.46 is: 65,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,814.98 : 118,415.12 = 47,573.46 : x
  2. Step 2: Convert to fraction form
    85,814.98/118,415.12 = 47,573.46/x
  3. Step 3: Cross multiply
    85,814.98x = 118,415.12 × 47,573.46
  4. Step 4: Simplify right side
    85,814.98x = 5,633,416,736.85
  5. Step 5: Solve for x
    x = 5,633,416,736.85/85,814.98
  6. Step 6: Final answer
    x = 65,646.08

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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.