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Finding the Fourth Proportional to 58,686.86, 88,004.16 and 18,698.49

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Solution

The fourth proportional to 58,686.86, 88,004.16 and 18,698.49 is: 28,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.86 : 88,004.16 = 18,698.49 : x
  2. Step 2: Convert to fraction form
    58,686.86/88,004.16 = 18,698.49/x
  3. Step 3: Cross multiply
    58,686.86x = 88,004.16 × 18,698.49
  4. Step 4: Simplify right side
    58,686.86x = 1,645,544,905.72
  5. Step 5: Solve for x
    x = 1,645,544,905.72/58,686.86
  6. Step 6: Final answer
    x = 28,039.41

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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.