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Finding the Fourth Proportional to 7,808.88, 10,776.47 and 4,666.89

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Solution

The fourth proportional to 7,808.88, 10,776.47 and 4,666.89 is: 6,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.88 : 10,776.47 = 4,666.89 : x
  2. Step 2: Convert to fraction form
    7,808.88/10,776.47 = 4,666.89/x
  3. Step 3: Cross multiply
    7,808.88x = 10,776.47 × 4,666.89
  4. Step 4: Simplify right side
    7,808.88x = 50,292,576.74
  5. Step 5: Solve for x
    x = 50,292,576.74/7,808.88
  6. Step 6: Final answer
    x = 6,440.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.