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Finding the Fourth Proportional to 30,484.42, 45,725.41 and 11,756.42

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Solution

The fourth proportional to 30,484.42, 45,725.41 and 11,756.42 is: 17,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.42 : 45,725.41 = 11,756.42 : x
  2. Step 2: Convert to fraction form
    30,484.42/45,725.41 = 11,756.42/x
  3. Step 3: Cross multiply
    30,484.42x = 45,725.41 × 11,756.42
  4. Step 4: Simplify right side
    30,484.42x = 537,567,124.63
  5. Step 5: Solve for x
    x = 537,567,124.63/30,484.42
  6. Step 6: Final answer
    x = 17,634.16

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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.