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Finding the Fourth Proportional to 48,990.87, 73,486.71 and 15,710.99

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Solution

The fourth proportional to 48,990.87, 73,486.71 and 15,710.99 is: 23,566.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.87 : 73,486.71 = 15,710.99 : x
  2. Step 2: Convert to fraction form
    48,990.87/73,486.71 = 15,710.99/x
  3. Step 3: Cross multiply
    48,990.87x = 73,486.71 × 15,710.99
  4. Step 4: Simplify right side
    48,990.87x = 1,154,548,598.51
  5. Step 5: Solve for x
    x = 1,154,548,598.51/48,990.87
  6. Step 6: Final answer
    x = 23,566.61

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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.