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Finding the Fourth Proportional to 8,348.80, 12,509.16 and 5,051.86

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Solution

The fourth proportional to 8,348.80, 12,509.16 and 5,051.86 is: 7,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.80 : 12,509.16 = 5,051.86 : x
  2. Step 2: Convert to fraction form
    8,348.80/12,509.16 = 5,051.86/x
  3. Step 3: Cross multiply
    8,348.80x = 12,509.16 × 5,051.86
  4. Step 4: Simplify right side
    8,348.80x = 63,194,525.04
  5. Step 5: Solve for x
    x = 63,194,525.04/8,348.80
  6. Step 6: Final answer
    x = 7,569.29

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1.5x scale

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.