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Finding the Fourth Proportional to 64,903.43, 89,607.28 and 49,767.01

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Solution

The fourth proportional to 64,903.43, 89,607.28 and 49,767.01 is: 68,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.43 : 89,607.28 = 49,767.01 : x
  2. Step 2: Convert to fraction form
    64,903.43/89,607.28 = 49,767.01/x
  3. Step 3: Cross multiply
    64,903.43x = 89,607.28 × 49,767.01
  4. Step 4: Simplify right side
    64,903.43x = 4,459,486,399.83
  5. Step 5: Solve for x
    x = 4,459,486,399.83/64,903.43
  6. Step 6: Final answer
    x = 68,709.56

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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.