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Finding the Fourth Proportional to 58,652.63, 87,980.38 and 19,208.15

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Solution

The fourth proportional to 58,652.63, 87,980.38 and 19,208.15 is: 28,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,652.63 : 87,980.38 = 19,208.15 : x
  2. Step 2: Convert to fraction form
    58,652.63/87,980.38 = 19,208.15/x
  3. Step 3: Cross multiply
    58,652.63x = 87,980.38 × 19,208.15
  4. Step 4: Simplify right side
    58,652.63x = 1,689,939,800.15
  5. Step 5: Solve for x
    x = 1,689,939,800.15/58,652.63
  6. Step 6: Final answer
    x = 28,812.69

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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.