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Finding the Fourth Proportional to 28,892.40, 39,890.04 and 23,599.92

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Solution

The fourth proportional to 28,892.40, 39,890.04 and 23,599.92 is: 32,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.40 : 39,890.04 = 23,599.92 : x
  2. Step 2: Convert to fraction form
    28,892.40/39,890.04 = 23,599.92/x
  3. Step 3: Cross multiply
    28,892.40x = 39,890.04 × 23,599.92
  4. Step 4: Simplify right side
    28,892.40x = 941,401,752.80
  5. Step 5: Solve for x
    x = 941,401,752.80/28,892.40
  6. Step 6: Final answer
    x = 32,583.02

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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.