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Finding the Fourth Proportional to 32,415.50, 48,637.90 and 18,564.50

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Solution

The fourth proportional to 32,415.50, 48,637.90 and 18,564.50 is: 27,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,415.50 : 48,637.90 = 18,564.50 : x
  2. Step 2: Convert to fraction form
    32,415.50/48,637.90 = 18,564.50/x
  3. Step 3: Cross multiply
    32,415.50x = 48,637.90 × 18,564.50
  4. Step 4: Simplify right side
    32,415.50x = 902,938,294.55
  5. Step 5: Solve for x
    x = 902,938,294.55/32,415.50
  6. Step 6: Final answer
    x = 27,855.14

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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.