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Finding the Fourth Proportional to 31,509.53, 43,482.63 and 17,169.53

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Solution

The fourth proportional to 31,509.53, 43,482.63 and 17,169.53 is: 23,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.53 : 43,482.63 = 17,169.53 : x
  2. Step 2: Convert to fraction form
    31,509.53/43,482.63 = 17,169.53/x
  3. Step 3: Cross multiply
    31,509.53x = 43,482.63 × 17,169.53
  4. Step 4: Simplify right side
    31,509.53x = 746,576,211.56
  5. Step 5: Solve for x
    x = 746,576,211.56/31,509.53
  6. Step 6: Final answer
    x = 23,693.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.