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Finding the Fourth Proportional to 64,903.56, 89,568.08 and 38,065.43

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Solution

The fourth proportional to 64,903.56, 89,568.08 and 38,065.43 is: 52,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.56 : 89,568.08 = 38,065.43 : x
  2. Step 2: Convert to fraction form
    64,903.56/89,568.08 = 38,065.43/x
  3. Step 3: Cross multiply
    64,903.56x = 89,568.08 × 38,065.43
  4. Step 4: Simplify right side
    64,903.56x = 3,409,447,479.47
  5. Step 5: Solve for x
    x = 3,409,447,479.47/64,903.56
  6. Step 6: Final answer
    x = 52,530.98

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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.