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Finding the Fourth Proportional to 8,241.12, 12,303 and 7,895.52

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Solution

The fourth proportional to 8,241.12, 12,303 and 7,895.52 is: 11,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.12 : 12,303 = 7,895.52 : x
  2. Step 2: Convert to fraction form
    8,241.12/12,303 = 7,895.52/x
  3. Step 3: Cross multiply
    8,241.12x = 12,303 × 7,895.52
  4. Step 4: Simplify right side
    8,241.12x = 97,138,582.56
  5. Step 5: Solve for x
    x = 97,138,582.56/8,241.12
  6. Step 6: Final answer
    x = 11,787.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.