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Finding the Fourth Proportional to 61,814.79, 85,303.67 and 33,520.14

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Solution

The fourth proportional to 61,814.79, 85,303.67 and 33,520.14 is: 46,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,814.79 : 85,303.67 = 33,520.14 : x
  2. Step 2: Convert to fraction form
    61,814.79/85,303.67 = 33,520.14/x
  3. Step 3: Cross multiply
    61,814.79x = 85,303.67 × 33,520.14
  4. Step 4: Simplify right side
    61,814.79x = 2,859,390,793.31
  5. Step 5: Solve for x
    x = 2,859,390,793.31/61,814.79
  6. Step 6: Final answer
    x = 46,257.39

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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.