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Finding the Fourth Proportional to 52,390.80, 72,341.10 and 41,893.20

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Solution

The fourth proportional to 52,390.80, 72,341.10 and 41,893.20 is: 57,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.80 : 72,341.10 = 41,893.20 : x
  2. Step 2: Convert to fraction form
    52,390.80/72,341.10 = 41,893.20/x
  3. Step 3: Cross multiply
    52,390.80x = 72,341.10 × 41,893.20
  4. Step 4: Simplify right side
    52,390.80x = 3,030,600,170.52
  5. Step 5: Solve for x
    x = 3,030,600,170.52/52,390.80
  6. Step 6: Final answer
    x = 57,846.04

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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.