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Finding the Fourth Proportional to 1,572.59, 2,358.92 and 1,262.99

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Solution

The fourth proportional to 1,572.59, 2,358.92 and 1,262.99 is: 1,894.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.59 : 2,358.92 = 1,262.99 : x
  2. Step 2: Convert to fraction form
    1,572.59/2,358.92 = 1,262.99/x
  3. Step 3: Cross multiply
    1,572.59x = 2,358.92 × 1,262.99
  4. Step 4: Simplify right side
    1,572.59x = 2,979,301.43
  5. Step 5: Solve for x
    x = 2,979,301.43/1,572.59
  6. Step 6: Final answer
    x = 1,894.52

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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.