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Finding the Fourth Proportional to 32,484.51, 48,664.13 and 21,357.81

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Solution

The fourth proportional to 32,484.51, 48,664.13 and 21,357.81 is: 31,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,484.51 : 48,664.13 = 21,357.81 : x
  2. Step 2: Convert to fraction form
    32,484.51/48,664.13 = 21,357.81/x
  3. Step 3: Cross multiply
    32,484.51x = 48,664.13 × 21,357.81
  4. Step 4: Simplify right side
    32,484.51x = 1,039,359,135.57
  5. Step 5: Solve for x
    x = 1,039,359,135.57/32,484.51
  6. Step 6: Final answer
    x = 31,995.53

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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.