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Finding the Fourth Proportional to 65,332.56, 97,989.62 and 20,953.56

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Solution

The fourth proportional to 65,332.56, 97,989.62 and 20,953.56 is: 31,427.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,332.56 : 97,989.62 = 20,953.56 : x
  2. Step 2: Convert to fraction form
    65,332.56/97,989.62 = 20,953.56/x
  3. Step 3: Cross multiply
    65,332.56x = 97,989.62 × 20,953.56
  4. Step 4: Simplify right side
    65,332.56x = 2,053,231,382.05
  5. Step 5: Solve for x
    x = 2,053,231,382.05/65,332.56
  6. Step 6: Final answer
    x = 31,427.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.