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Finding the Fourth Proportional to 58,695.85, 81,000.30 and 31,838.26

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Solution

The fourth proportional to 58,695.85, 81,000.30 and 31,838.26 is: 43,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,695.85 : 81,000.30 = 31,838.26 : x
  2. Step 2: Convert to fraction form
    58,695.85/81,000.30 = 31,838.26/x
  3. Step 3: Cross multiply
    58,695.85x = 81,000.30 × 31,838.26
  4. Step 4: Simplify right side
    58,695.85x = 2,578,908,611.48
  5. Step 5: Solve for x
    x = 2,578,908,611.48/58,695.85
  6. Step 6: Final answer
    x = 43,936.81

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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.