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Finding the Fourth Proportional to 8,794.98, 13,159.08 and 5,405.70

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Solution

The fourth proportional to 8,794.98, 13,159.08 and 5,405.70 is: 8,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.98 : 13,159.08 = 5,405.70 : x
  2. Step 2: Convert to fraction form
    8,794.98/13,159.08 = 5,405.70/x
  3. Step 3: Cross multiply
    8,794.98x = 13,159.08 × 5,405.70
  4. Step 4: Simplify right side
    8,794.98x = 71,134,038.76
  5. Step 5: Solve for x
    x = 71,134,038.76/8,794.98
  6. Step 6: Final answer
    x = 8,088.03

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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.