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Finding the Fourth Proportional to 17,674.70, 26,492.60 and 7,280.78

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Solution

The fourth proportional to 17,674.70, 26,492.60 and 7,280.78 is: 10,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,674.70 : 26,492.60 = 7,280.78 : x
  2. Step 2: Convert to fraction form
    17,674.70/26,492.60 = 7,280.78/x
  3. Step 3: Cross multiply
    17,674.70x = 26,492.60 × 7,280.78
  4. Step 4: Simplify right side
    17,674.70x = 192,886,792.23
  5. Step 5: Solve for x
    x = 192,886,792.23/17,674.70
  6. Step 6: Final answer
    x = 10,913.16

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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.