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Finding the Fourth Proportional to 7,681.40, 10,600.71 and 4,324.04

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Solution

The fourth proportional to 7,681.40, 10,600.71 and 4,324.04 is: 5,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.40 : 10,600.71 = 4,324.04 : x
  2. Step 2: Convert to fraction form
    7,681.40/10,600.71 = 4,324.04/x
  3. Step 3: Cross multiply
    7,681.40x = 10,600.71 × 4,324.04
  4. Step 4: Simplify right side
    7,681.40x = 45,837,894.07
  5. Step 5: Solve for x
    x = 45,837,894.07/7,681.40
  6. Step 6: Final answer
    x = 5,967.39

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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.