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Finding the Fourth Proportional to 28,320.19, 42,477.54 and 8,598.92

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Solution

The fourth proportional to 28,320.19, 42,477.54 and 8,598.92 is: 12,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.19 : 42,477.54 = 8,598.92 : x
  2. Step 2: Convert to fraction form
    28,320.19/42,477.54 = 8,598.92/x
  3. Step 3: Cross multiply
    28,320.19x = 42,477.54 × 8,598.92
  4. Step 4: Simplify right side
    28,320.19x = 365,260,755.87
  5. Step 5: Solve for x
    x = 365,260,755.87/28,320.19
  6. Step 6: Final answer
    x = 12,897.54

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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.