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Finding the Fourth Proportional to 58,479.66, 80,701.98 and 31,622.18

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Solution

The fourth proportional to 58,479.66, 80,701.98 and 31,622.18 is: 43,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,479.66 : 80,701.98 = 31,622.18 : x
  2. Step 2: Convert to fraction form
    58,479.66/80,701.98 = 31,622.18/x
  3. Step 3: Cross multiply
    58,479.66x = 80,701.98 × 31,622.18
  4. Step 4: Simplify right side
    58,479.66x = 2,551,972,379.81
  5. Step 5: Solve for x
    x = 2,551,972,379.81/58,479.66
  6. Step 6: Final answer
    x = 43,638.63

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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.