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Finding the Fourth Proportional to 17,316.90, 25,938.90 and 14,400.90

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Solution

The fourth proportional to 17,316.90, 25,938.90 and 14,400.90 is: 21,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,316.90 : 25,938.90 = 14,400.90 : x
  2. Step 2: Convert to fraction form
    17,316.90/25,938.90 = 14,400.90/x
  3. Step 3: Cross multiply
    17,316.90x = 25,938.90 × 14,400.90
  4. Step 4: Simplify right side
    17,316.90x = 373,543,505.01
  5. Step 5: Solve for x
    x = 373,543,505.01/17,316.90
  6. Step 6: Final answer
    x = 21,571.04

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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.