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Finding the Fourth Proportional to 64,836.51, 97,254.77 and 20,494.41

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Solution

The fourth proportional to 64,836.51, 97,254.77 and 20,494.41 is: 30,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,836.51 : 97,254.77 = 20,494.41 : x
  2. Step 2: Convert to fraction form
    64,836.51/97,254.77 = 20,494.41/x
  3. Step 3: Cross multiply
    64,836.51x = 97,254.77 × 20,494.41
  4. Step 4: Simplify right side
    64,836.51x = 1,993,179,130.84
  5. Step 5: Solve for x
    x = 1,993,179,130.84/64,836.51
  6. Step 6: Final answer
    x = 30,741.62

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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.