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Finding the Fourth Proportional to 7,665.71, 10,576.04 and 4,980.29

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Solution

The fourth proportional to 7,665.71, 10,576.04 and 4,980.29 is: 6,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.71 : 10,576.04 = 4,980.29 : x
  2. Step 2: Convert to fraction form
    7,665.71/10,576.04 = 4,980.29/x
  3. Step 3: Cross multiply
    7,665.71x = 10,576.04 × 4,980.29
  4. Step 4: Simplify right side
    7,665.71x = 52,671,668.47
  5. Step 5: Solve for x
    x = 52,671,668.47/7,665.71
  6. Step 6: Final answer
    x = 6,871.08

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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.