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Finding the Fourth Proportional to 28,608.50, 39,482.16 and 16,035.68

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Solution

The fourth proportional to 28,608.50, 39,482.16 and 16,035.68 is: 22,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.50 : 39,482.16 = 16,035.68 : x
  2. Step 2: Convert to fraction form
    28,608.50/39,482.16 = 16,035.68/x
  3. Step 3: Cross multiply
    28,608.50x = 39,482.16 × 16,035.68
  4. Step 4: Simplify right side
    28,608.50x = 633,123,283.47
  5. Step 5: Solve for x
    x = 633,123,283.47/28,608.50
  6. Step 6: Final answer
    x = 22,130.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.