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Finding the Fourth Proportional to 71,367.48, 98,487.63 and 39,536.91

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Solution

The fourth proportional to 71,367.48, 98,487.63 and 39,536.91 is: 54,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.48 : 98,487.63 = 39,536.91 : x
  2. Step 2: Convert to fraction form
    71,367.48/98,487.63 = 39,536.91/x
  3. Step 3: Cross multiply
    71,367.48x = 98,487.63 × 39,536.91
  4. Step 4: Simplify right side
    71,367.48x = 3,893,896,563.42
  5. Step 5: Solve for x
    x = 3,893,896,563.42/71,367.48
  6. Step 6: Final answer
    x = 54,561.22

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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.