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Finding the Fourth Proportional to 58,958.99, 88,443.60 and 18,981.99

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Solution

The fourth proportional to 58,958.99, 88,443.60 and 18,981.99 is: 28,474.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,958.99 : 88,443.60 = 18,981.99 : x
  2. Step 2: Convert to fraction form
    58,958.99/88,443.60 = 18,981.99/x
  3. Step 3: Cross multiply
    58,958.99x = 88,443.60 × 18,981.99
  4. Step 4: Simplify right side
    58,958.99x = 1,678,835,868.49
  5. Step 5: Solve for x
    x = 1,678,835,868.49/58,958.99
  6. Step 6: Final answer
    x = 28,474.64

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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.