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Finding the Fourth Proportional to 58,159.54, 87,239.34 and 18,716.65

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Solution

The fourth proportional to 58,159.54, 87,239.34 and 18,716.65 is: 28,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,159.54 : 87,239.34 = 18,716.65 : x
  2. Step 2: Convert to fraction form
    58,159.54/87,239.34 = 18,716.65/x
  3. Step 3: Cross multiply
    58,159.54x = 87,239.34 × 18,716.65
  4. Step 4: Simplify right side
    58,159.54x = 1,632,828,193.01
  5. Step 5: Solve for x
    x = 1,632,828,193.01/58,159.54
  6. Step 6: Final answer
    x = 28,074.98

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1.5x scale

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.