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Finding the Fourth Proportional to 1,059.01, 1,590.57 and 962.65

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Solution

The fourth proportional to 1,059.01, 1,590.57 and 962.65 is: 1,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.01 : 1,590.57 = 962.65 : x
  2. Step 2: Convert to fraction form
    1,059.01/1,590.57 = 962.65/x
  3. Step 3: Cross multiply
    1,059.01x = 1,590.57 × 962.65
  4. Step 4: Simplify right side
    1,059.01x = 1,531,162.21
  5. Step 5: Solve for x
    x = 1,531,162.21/1,059.01
  6. Step 6: Final answer
    x = 1,445.84

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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.