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Finding the Fourth Proportional to 9,095.70, 13,643.55 and 8,002.20

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Solution

The fourth proportional to 9,095.70, 13,643.55 and 8,002.20 is: 12,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,095.70 : 13,643.55 = 8,002.20 : x
  2. Step 2: Convert to fraction form
    9,095.70/13,643.55 = 8,002.20/x
  3. Step 3: Cross multiply
    9,095.70x = 13,643.55 × 8,002.20
  4. Step 4: Simplify right side
    9,095.70x = 109,178,415.81
  5. Step 5: Solve for x
    x = 109,178,415.81/9,095.70
  6. Step 6: Final answer
    x = 12,003.30

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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.