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Finding the Fourth Proportional to 71,417.80, 98,523.43 and 50,209.57

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Solution

The fourth proportional to 71,417.80, 98,523.43 and 50,209.57 is: 69,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,417.80 : 98,523.43 = 50,209.57 : x
  2. Step 2: Convert to fraction form
    71,417.80/98,523.43 = 50,209.57/x
  3. Step 3: Cross multiply
    71,417.80x = 98,523.43 × 50,209.57
  4. Step 4: Simplify right side
    71,417.80x = 4,946,819,055.23
  5. Step 5: Solve for x
    x = 4,946,819,055.23/71,417.80
  6. Step 6: Final answer
    x = 69,265.91

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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.