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Finding the Fourth Proportional to 71,420.94, 98,566.47 and 39,596.04

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Solution

The fourth proportional to 71,420.94, 98,566.47 and 39,596.04 is: 54,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,420.94 : 98,566.47 = 39,596.04 : x
  2. Step 2: Convert to fraction form
    71,420.94/98,566.47 = 39,596.04/x
  3. Step 3: Cross multiply
    71,420.94x = 98,566.47 × 39,596.04
  4. Step 4: Simplify right side
    71,420.94x = 3,902,841,888.78
  5. Step 5: Solve for x
    x = 3,902,841,888.78/71,420.94
  6. Step 6: Final answer
    x = 54,645.62

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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.