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Finding the Fourth Proportional to 18,660.66, 25,750.54 and 10,277.16

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Solution

The fourth proportional to 18,660.66, 25,750.54 and 10,277.16 is: 14,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.66 : 25,750.54 = 10,277.16 : x
  2. Step 2: Convert to fraction form
    18,660.66/25,750.54 = 10,277.16/x
  3. Step 3: Cross multiply
    18,660.66x = 25,750.54 × 10,277.16
  4. Step 4: Simplify right side
    18,660.66x = 264,642,419.67
  5. Step 5: Solve for x
    x = 264,642,419.67/18,660.66
  6. Step 6: Final answer
    x = 14,181.84

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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.