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Finding the Fourth Proportional to 58,472.96, 80,692.65 and 31,615.47

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Solution

The fourth proportional to 58,472.96, 80,692.65 and 31,615.47 is: 43,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.96 : 80,692.65 = 31,615.47 : x
  2. Step 2: Convert to fraction form
    58,472.96/80,692.65 = 31,615.47/x
  3. Step 3: Cross multiply
    58,472.96x = 80,692.65 × 31,615.47
  4. Step 4: Simplify right side
    58,472.96x = 2,551,136,055.30
  5. Step 5: Solve for x
    x = 2,551,136,055.30/58,472.96
  6. Step 6: Final answer
    x = 43,629.33

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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.