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Finding the Fourth Proportional to 46,771.60, 70,108.80 and 25,679.20

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Solution

The fourth proportional to 46,771.60, 70,108.80 and 25,679.20 is: 38,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,771.60 : 70,108.80 = 25,679.20 : x
  2. Step 2: Convert to fraction form
    46,771.60/70,108.80 = 25,679.20/x
  3. Step 3: Cross multiply
    46,771.60x = 70,108.80 × 25,679.20
  4. Step 4: Simplify right side
    46,771.60x = 1,800,337,896.96
  5. Step 5: Solve for x
    x = 1,800,337,896.96/46,771.60
  6. Step 6: Final answer
    x = 38,492.12

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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.