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Finding the Fourth Proportional to 58,482.51, 87,723.71 and 19,039.56

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Solution

The fourth proportional to 58,482.51, 87,723.71 and 19,039.56 is: 28,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,482.51 : 87,723.71 = 19,039.56 : x
  2. Step 2: Convert to fraction form
    58,482.51/87,723.71 = 19,039.56/x
  3. Step 3: Cross multiply
    58,482.51x = 87,723.71 × 19,039.56
  4. Step 4: Simplify right side
    58,482.51x = 1,670,220,487.20
  5. Step 5: Solve for x
    x = 1,670,220,487.20/58,482.51
  6. Step 6: Final answer
    x = 28,559.32

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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.