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Finding the Fourth Proportional to 1,492.24, 2,059.29 and 829.07

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Solution

The fourth proportional to 1,492.24, 2,059.29 and 829.07 is: 1,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.24 : 2,059.29 = 829.07 : x
  2. Step 2: Convert to fraction form
    1,492.24/2,059.29 = 829.07/x
  3. Step 3: Cross multiply
    1,492.24x = 2,059.29 × 829.07
  4. Step 4: Simplify right side
    1,492.24x = 1,707,300.71
  5. Step 5: Solve for x
    x = 1,707,300.71/1,492.24
  6. Step 6: Final answer
    x = 1,144.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.