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Finding the Fourth Proportional to 8,958.12, 13,508.84 and 8,835

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Solution

The fourth proportional to 8,958.12, 13,508.84 and 8,835 is: 13,323.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.12 : 13,508.84 = 8,835 : x
  2. Step 2: Convert to fraction form
    8,958.12/13,508.84 = 8,835/x
  3. Step 3: Cross multiply
    8,958.12x = 13,508.84 × 8,835
  4. Step 4: Simplify right side
    8,958.12x = 119,350,601.40
  5. Step 5: Solve for x
    x = 119,350,601.40/8,958.12
  6. Step 6: Final answer
    x = 13,323.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.