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Finding the Fourth Proportional to 61,589.70, 92,355.81 and 31,999.59

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Solution

The fourth proportional to 61,589.70, 92,355.81 and 31,999.59 is: 47,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,589.70 : 92,355.81 = 31,999.59 : x
  2. Step 2: Convert to fraction form
    61,589.70/92,355.81 = 31,999.59/x
  3. Step 3: Cross multiply
    61,589.70x = 92,355.81 × 31,999.59
  4. Step 4: Simplify right side
    61,589.70x = 2,955,348,054.12
  5. Step 5: Solve for x
    x = 2,955,348,054.12/61,589.70
  6. Step 6: Final answer
    x = 47,984.45

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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.