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Finding the Fourth Proportional to 17,293.76, 25,903.68 and 7,420.16

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Solution

The fourth proportional to 17,293.76, 25,903.68 and 7,420.16 is: 11,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,293.76 : 25,903.68 = 7,420.16 : x
  2. Step 2: Convert to fraction form
    17,293.76/25,903.68 = 7,420.16/x
  3. Step 3: Cross multiply
    17,293.76x = 25,903.68 × 7,420.16
  4. Step 4: Simplify right side
    17,293.76x = 192,209,450.19
  5. Step 5: Solve for x
    x = 192,209,450.19/17,293.76
  6. Step 6: Final answer
    x = 11,114.38

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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.