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Finding the Fourth Proportional to 9,216.80, 12,452.40 and 9,216.80

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Solution

The fourth proportional to 9,216.80, 12,452.40 and 9,216.80 is: 12,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216.80 : 12,452.40 = 9,216.80 : x
  2. Step 2: Convert to fraction form
    9,216.80/12,452.40 = 9,216.80/x
  3. Step 3: Cross multiply
    9,216.80x = 12,452.40 × 9,216.80
  4. Step 4: Simplify right side
    9,216.80x = 114,771,280.32
  5. Step 5: Solve for x
    x = 114,771,280.32/9,216.80
  6. Step 6: Final answer
    x = 12,452.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.