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Finding the Fourth Proportional to 58,580.42, 80,841.06 and 31,722.98

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Solution

The fourth proportional to 58,580.42, 80,841.06 and 31,722.98 is: 43,777.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,580.42 : 80,841.06 = 31,722.98 : x
  2. Step 2: Convert to fraction form
    58,580.42/80,841.06 = 31,722.98/x
  3. Step 3: Cross multiply
    58,580.42x = 80,841.06 × 31,722.98
  4. Step 4: Simplify right side
    58,580.42x = 2,564,519,206.76
  5. Step 5: Solve for x
    x = 2,564,519,206.76/58,580.42
  6. Step 6: Final answer
    x = 43,777.75

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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.