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Finding the Fourth Proportional to 17,065.78, 25,620.90 and 14,988.10

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Solution

The fourth proportional to 17,065.78, 25,620.90 and 14,988.10 is: 22,501.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,065.78 : 25,620.90 = 14,988.10 : x
  2. Step 2: Convert to fraction form
    17,065.78/25,620.90 = 14,988.10/x
  3. Step 3: Cross multiply
    17,065.78x = 25,620.90 × 14,988.10
  4. Step 4: Simplify right side
    17,065.78x = 384,008,611.29
  5. Step 5: Solve for x
    x = 384,008,611.29/17,065.78
  6. Step 6: Final answer
    x = 22,501.67

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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.