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Finding the Fourth Proportional to 38,323.47, 57,485.49 and 13,363.47

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Solution

The fourth proportional to 38,323.47, 57,485.49 and 13,363.47 is: 20,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,323.47 : 57,485.49 = 13,363.47 : x
  2. Step 2: Convert to fraction form
    38,323.47/57,485.49 = 13,363.47/x
  3. Step 3: Cross multiply
    38,323.47x = 57,485.49 × 13,363.47
  4. Step 4: Simplify right side
    38,323.47x = 768,205,621.05
  5. Step 5: Solve for x
    x = 768,205,621.05/38,323.47
  6. Step 6: Final answer
    x = 20,045.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.