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Finding the Fourth Proportional to 1,713.63, 2,363.86 and 1,153.11

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Solution

The fourth proportional to 1,713.63, 2,363.86 and 1,153.11 is: 1,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.63 : 2,363.86 = 1,153.11 : x
  2. Step 2: Convert to fraction form
    1,713.63/2,363.86 = 1,153.11/x
  3. Step 3: Cross multiply
    1,713.63x = 2,363.86 × 1,153.11
  4. Step 4: Simplify right side
    1,713.63x = 2,725,790.60
  5. Step 5: Solve for x
    x = 2,725,790.60/1,713.63
  6. Step 6: Final answer
    x = 1,590.65

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1.5x scale

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.