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Finding the Fourth Proportional to 45,690.99, 68,519.47 and 15,699.02

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Solution

The fourth proportional to 45,690.99, 68,519.47 and 15,699.02 is: 23,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,690.99 : 68,519.47 = 15,699.02 : x
  2. Step 2: Convert to fraction form
    45,690.99/68,519.47 = 15,699.02/x
  3. Step 3: Cross multiply
    45,690.99x = 68,519.47 × 15,699.02
  4. Step 4: Simplify right side
    45,690.99x = 1,075,688,177.51
  5. Step 5: Solve for x
    x = 1,075,688,177.51/45,690.99
  6. Step 6: Final answer
    x = 23,542.68

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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.