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Finding the Fourth Proportional to 50,806.57, 70,113.05 and 28,147.03

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Solution

The fourth proportional to 50,806.57, 70,113.05 and 28,147.03 is: 38,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,806.57 : 70,113.05 = 28,147.03 : x
  2. Step 2: Convert to fraction form
    50,806.57/70,113.05 = 28,147.03/x
  3. Step 3: Cross multiply
    50,806.57x = 70,113.05 × 28,147.03
  4. Step 4: Simplify right side
    50,806.57x = 1,973,473,981.01
  5. Step 5: Solve for x
    x = 1,973,473,981.01/50,806.57
  6. Step 6: Final answer
    x = 38,842.89

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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.