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Finding the Fourth Proportional to 29,830.60, 44,762.10 and 12,302.20

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Solution

The fourth proportional to 29,830.60, 44,762.10 and 12,302.20 is: 18,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,830.60 : 44,762.10 = 12,302.20 : x
  2. Step 2: Convert to fraction form
    29,830.60/44,762.10 = 12,302.20/x
  3. Step 3: Cross multiply
    29,830.60x = 44,762.10 × 12,302.20
  4. Step 4: Simplify right side
    29,830.60x = 550,672,306.62
  5. Step 5: Solve for x
    x = 550,672,306.62/29,830.60
  6. Step 6: Final answer
    x = 18,459.98

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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.