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Finding the Fourth Proportional to 57,978.48, 86,975.93 and 18,526.37

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Solution

The fourth proportional to 57,978.48, 86,975.93 and 18,526.37 is: 27,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,978.48 : 86,975.93 = 18,526.37 : x
  2. Step 2: Convert to fraction form
    57,978.48/86,975.93 = 18,526.37/x
  3. Step 3: Cross multiply
    57,978.48x = 86,975.93 × 18,526.37
  4. Step 4: Simplify right side
    57,978.48x = 1,611,348,256.74
  5. Step 5: Solve for x
    x = 1,611,348,256.74/57,978.48
  6. Step 6: Final answer
    x = 27,792.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.