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Finding the Fourth Proportional to 58,479.79, 80,702.05 and 31,622.23

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Solution

The fourth proportional to 58,479.79, 80,702.05 and 31,622.23 is: 43,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,479.79 : 80,702.05 = 31,622.23 : x
  2. Step 2: Convert to fraction form
    58,479.79/80,702.05 = 31,622.23/x
  3. Step 3: Cross multiply
    58,479.79x = 80,702.05 × 31,622.23
  4. Step 4: Simplify right side
    58,479.79x = 2,551,978,505.76
  5. Step 5: Solve for x
    x = 2,551,978,505.76/58,479.79
  6. Step 6: Final answer
    x = 43,638.64

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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.