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Finding the Fourth Proportional to 66,298.28, 91,489.56 and 48,468.56

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Solution

The fourth proportional to 66,298.28, 91,489.56 and 48,468.56 is: 66,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.28 : 91,489.56 = 48,468.56 : x
  2. Step 2: Convert to fraction form
    66,298.28/91,489.56 = 48,468.56/x
  3. Step 3: Cross multiply
    66,298.28x = 91,489.56 × 48,468.56
  4. Step 4: Simplify right side
    66,298.28x = 4,434,367,228.23
  5. Step 5: Solve for x
    x = 4,434,367,228.23/66,298.28
  6. Step 6: Final answer
    x = 66,885.10

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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.