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Finding the Fourth Proportional to 30,443.64, 45,672.72 and 9,667.16

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Solution

The fourth proportional to 30,443.64, 45,672.72 and 9,667.16 is: 14,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.64 : 45,672.72 = 9,667.16 : x
  2. Step 2: Convert to fraction form
    30,443.64/45,672.72 = 9,667.16/x
  3. Step 3: Cross multiply
    30,443.64x = 45,672.72 × 9,667.16
  4. Step 4: Simplify right side
    30,443.64x = 441,525,491.88
  5. Step 5: Solve for x
    x = 441,525,491.88/30,443.64
  6. Step 6: Final answer
    x = 14,503.05

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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.