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Finding the Fourth Proportional to 7,095.90, 10,697.00 and 6,620.16

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Solution

The fourth proportional to 7,095.90, 10,697.00 and 6,620.16 is: 9,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,095.90 : 10,697.00 = 6,620.16 : x
  2. Step 2: Convert to fraction form
    7,095.90/10,697.00 = 6,620.16/x
  3. Step 3: Cross multiply
    7,095.90x = 10,697.00 × 6,620.16
  4. Step 4: Simplify right side
    7,095.90x = 70,815,818.42
  5. Step 5: Solve for x
    x = 70,815,818.42/7,095.90
  6. Step 6: Final answer
    x = 9,979.82

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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.