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Finding the Fourth Proportional to 71,675.29, 98,866.20 and 56,563.12

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Solution

The fourth proportional to 71,675.29, 98,866.20 and 56,563.12 is: 78,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,675.29 : 98,866.20 = 56,563.12 : x
  2. Step 2: Convert to fraction form
    71,675.29/98,866.20 = 56,563.12/x
  3. Step 3: Cross multiply
    71,675.29x = 98,866.20 × 56,563.12
  4. Step 4: Simplify right side
    71,675.29x = 5,592,180,734.54
  5. Step 5: Solve for x
    x = 5,592,180,734.54/71,675.29
  6. Step 6: Final answer
    x = 78,021.04

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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.