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Finding the Fourth Proportional to 2,059.65, 2,890.80 and 2,059.65

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Solution

The fourth proportional to 2,059.65, 2,890.80 and 2,059.65 is: 2,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059.65 : 2,890.80 = 2,059.65 : x
  2. Step 2: Convert to fraction form
    2,059.65/2,890.80 = 2,059.65/x
  3. Step 3: Cross multiply
    2,059.65x = 2,890.80 × 2,059.65
  4. Step 4: Simplify right side
    2,059.65x = 5,954,036.22
  5. Step 5: Solve for x
    x = 5,954,036.22/2,059.65
  6. Step 6: Final answer
    x = 2,890.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.