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Finding the Fourth Proportional to 11,358.96, 15,673.63 and 6,513

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Solution

The fourth proportional to 11,358.96, 15,673.63 and 6,513 is: 8,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.96 : 15,673.63 = 6,513 : x
  2. Step 2: Convert to fraction form
    11,358.96/15,673.63 = 6,513/x
  3. Step 3: Cross multiply
    11,358.96x = 15,673.63 × 6,513
  4. Step 4: Simplify right side
    11,358.96x = 102,082,352.19
  5. Step 5: Solve for x
    x = 102,082,352.19/11,358.96
  6. Step 6: Final answer
    x = 8,986.95

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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.