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Finding the Fourth Proportional to 56,666.67, 84,835.75 and 42,685.56

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Solution

The fourth proportional to 56,666.67, 84,835.75 and 42,685.56 is: 63,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,666.67 : 84,835.75 = 42,685.56 : x
  2. Step 2: Convert to fraction form
    56,666.67/84,835.75 = 42,685.56/x
  3. Step 3: Cross multiply
    56,666.67x = 84,835.75 × 42,685.56
  4. Step 4: Simplify right side
    56,666.67x = 3,621,261,496.77
  5. Step 5: Solve for x
    x = 3,621,261,496.77/56,666.67
  6. Step 6: Final answer
    x = 63,904.61

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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.