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Finding the Fourth Proportional to 58,572.86, 80,842.47 and 39,716.06

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Solution

The fourth proportional to 58,572.86, 80,842.47 and 39,716.06 is: 54,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,572.86 : 80,842.47 = 39,716.06 : x
  2. Step 2: Convert to fraction form
    58,572.86/80,842.47 = 39,716.06/x
  3. Step 3: Cross multiply
    58,572.86x = 80,842.47 × 39,716.06
  4. Step 4: Simplify right side
    58,572.86x = 3,210,744,389.07
  5. Step 5: Solve for x
    x = 3,210,744,389.07/58,572.86
  6. Step 6: Final answer
    x = 54,816.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.