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Finding the Fourth Proportional to 64,903.89, 97,361.78 and 18,156.63

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Solution

The fourth proportional to 64,903.89, 97,361.78 and 18,156.63 is: 27,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.89 : 97,361.78 = 18,156.63 : x
  2. Step 2: Convert to fraction form
    64,903.89/97,361.78 = 18,156.63/x
  3. Step 3: Cross multiply
    64,903.89x = 97,361.78 × 18,156.63
  4. Step 4: Simplify right side
    64,903.89x = 1,767,761,724.82
  5. Step 5: Solve for x
    x = 1,767,761,724.82/64,903.89
  6. Step 6: Final answer
    x = 27,236.61

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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.