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Finding the Fourth Proportional to 1,688.57, 2,533 and 592.84

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Solution

The fourth proportional to 1,688.57, 2,533 and 592.84 is: 889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.57 : 2,533 = 592.84 : x
  2. Step 2: Convert to fraction form
    1,688.57/2,533 = 592.84/x
  3. Step 3: Cross multiply
    1,688.57x = 2,533 × 592.84
  4. Step 4: Simplify right side
    1,688.57x = 1,501,663.72
  5. Step 5: Solve for x
    x = 1,501,663.72/1,688.57
  6. Step 6: Final answer
    x = 889.31

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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.