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Finding the Fourth Proportional to 11,572.94, 15,964.36 and 7,316.19

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Solution

The fourth proportional to 11,572.94, 15,964.36 and 7,316.19 is: 10,092.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572.94 : 15,964.36 = 7,316.19 : x
  2. Step 2: Convert to fraction form
    11,572.94/15,964.36 = 7,316.19/x
  3. Step 3: Cross multiply
    11,572.94x = 15,964.36 × 7,316.19
  4. Step 4: Simplify right side
    11,572.94x = 116,798,272.70
  5. Step 5: Solve for x
    x = 116,798,272.70/11,572.94
  6. Step 6: Final answer
    x = 10,092.36

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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.