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Finding the Fourth Proportional to 7,775.64, 11,663.16 and 3,095.46

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Solution

The fourth proportional to 7,775.64, 11,663.16 and 3,095.46 is: 4,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.64 : 11,663.16 = 3,095.46 : x
  2. Step 2: Convert to fraction form
    7,775.64/11,663.16 = 3,095.46/x
  3. Step 3: Cross multiply
    7,775.64x = 11,663.16 × 3,095.46
  4. Step 4: Simplify right side
    7,775.64x = 36,102,845.25
  5. Step 5: Solve for x
    x = 36,102,845.25/7,775.64
  6. Step 6: Final answer
    x = 4,643.07

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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.