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Finding the Fourth Proportional to 71,176.98, 98,224.84 and 39,346.42

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Solution

The fourth proportional to 71,176.98, 98,224.84 and 39,346.42 is: 54,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,176.98 : 98,224.84 = 39,346.42 : x
  2. Step 2: Convert to fraction form
    71,176.98/98,224.84 = 39,346.42/x
  3. Step 3: Cross multiply
    71,176.98x = 98,224.84 × 39,346.42
  4. Step 4: Simplify right side
    71,176.98x = 3,864,795,809.07
  5. Step 5: Solve for x
    x = 3,864,795,809.07/71,176.98
  6. Step 6: Final answer
    x = 54,298.40

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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.