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Finding the Fourth Proportional to 52,487.51, 78,754.53 and 27,521.63

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Solution

The fourth proportional to 52,487.51, 78,754.53 and 27,521.63 is: 41,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,487.51 : 78,754.53 = 27,521.63 : x
  2. Step 2: Convert to fraction form
    52,487.51/78,754.53 = 27,521.63/x
  3. Step 3: Cross multiply
    52,487.51x = 78,754.53 × 27,521.63
  4. Step 4: Simplify right side
    52,487.51x = 2,167,452,940.81
  5. Step 5: Solve for x
    x = 2,167,452,940.81/52,487.51
  6. Step 6: Final answer
    x = 41,294.64

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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.