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Finding the Fourth Proportional to 74,492.85, 111,740.49 and 18,333.12

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Solution

The fourth proportional to 74,492.85, 111,740.49 and 18,333.12 is: 27,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.85 : 111,740.49 = 18,333.12 : x
  2. Step 2: Convert to fraction form
    74,492.85/111,740.49 = 18,333.12/x
  3. Step 3: Cross multiply
    74,492.85x = 111,740.49 × 18,333.12
  4. Step 4: Simplify right side
    74,492.85x = 2,048,551,812.03
  5. Step 5: Solve for x
    x = 2,048,551,812.03/74,492.85
  6. Step 6: Final answer
    x = 27,499.98

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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.