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Finding the Fourth Proportional to 34,931.76, 52,350.90 and 17,135.16

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Solution

The fourth proportional to 34,931.76, 52,350.90 and 17,135.16 is: 25,679.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,931.76 : 52,350.90 = 17,135.16 : x
  2. Step 2: Convert to fraction form
    34,931.76/52,350.90 = 17,135.16/x
  3. Step 3: Cross multiply
    34,931.76x = 52,350.90 × 17,135.16
  4. Step 4: Simplify right side
    34,931.76x = 897,041,047.64
  5. Step 5: Solve for x
    x = 897,041,047.64/34,931.76
  6. Step 6: Final answer
    x = 25,679.81

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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.