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Finding the Fourth Proportional to 12,444.55, 17,173.14 and 6,779.41

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Solution

The fourth proportional to 12,444.55, 17,173.14 and 6,779.41 is: 9,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.55 : 17,173.14 = 6,779.41 : x
  2. Step 2: Convert to fraction form
    12,444.55/17,173.14 = 6,779.41/x
  3. Step 3: Cross multiply
    12,444.55x = 17,173.14 × 6,779.41
  4. Step 4: Simplify right side
    12,444.55x = 116,423,757.05
  5. Step 5: Solve for x
    x = 116,423,757.05/12,444.55
  6. Step 6: Final answer
    x = 9,355.40

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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.