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Finding the Fourth Proportional to 9,354.53, 12,900.82 and 7,226.86

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Solution

The fourth proportional to 9,354.53, 12,900.82 and 7,226.86 is: 9,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.53 : 12,900.82 = 7,226.86 : x
  2. Step 2: Convert to fraction form
    9,354.53/12,900.82 = 7,226.86/x
  3. Step 3: Cross multiply
    9,354.53x = 12,900.82 × 7,226.86
  4. Step 4: Simplify right side
    9,354.53x = 93,232,420.03
  5. Step 5: Solve for x
    x = 93,232,420.03/9,354.53
  6. Step 6: Final answer
    x = 9,966.55

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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.