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Finding the Fourth Proportional to 13,031.74, 19,543.84 and 6,364.12

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Solution

The fourth proportional to 13,031.74, 19,543.84 and 6,364.12 is: 9,544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.74 : 19,543.84 = 6,364.12 : x
  2. Step 2: Convert to fraction form
    13,031.74/19,543.84 = 6,364.12/x
  3. Step 3: Cross multiply
    13,031.74x = 19,543.84 × 6,364.12
  4. Step 4: Simplify right side
    13,031.74x = 124,379,343.02
  5. Step 5: Solve for x
    x = 124,379,343.02/13,031.74
  6. Step 6: Final answer
    x = 9,544.34

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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.