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Finding the Fourth Proportional to 58,478.46, 87,696.99 and 19,028.22

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Solution

The fourth proportional to 58,478.46, 87,696.99 and 19,028.22 is: 28,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,478.46 : 87,696.99 = 19,028.22 : x
  2. Step 2: Convert to fraction form
    58,478.46/87,696.99 = 19,028.22/x
  3. Step 3: Cross multiply
    58,478.46x = 87,696.99 × 19,028.22
  4. Step 4: Simplify right side
    58,478.46x = 1,668,717,619.06
  5. Step 5: Solve for x
    x = 1,668,717,619.06/58,478.46
  6. Step 6: Final answer
    x = 28,535.59

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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.