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Finding the Fourth Proportional to 5,582.94, 7,706.97 and 4,090.92

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Solution

The fourth proportional to 5,582.94, 7,706.97 and 4,090.92 is: 5,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.94 : 7,706.97 = 4,090.92 : x
  2. Step 2: Convert to fraction form
    5,582.94/7,706.97 = 4,090.92/x
  3. Step 3: Cross multiply
    5,582.94x = 7,706.97 × 4,090.92
  4. Step 4: Simplify right side
    5,582.94x = 31,528,597.71
  5. Step 5: Solve for x
    x = 31,528,597.71/5,582.94
  6. Step 6: Final answer
    x = 5,647.31

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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.