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Finding the Fourth Proportional to 5,810.40, 8,669.40 and 5,042.40

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Solution

The fourth proportional to 5,810.40, 8,669.40 and 5,042.40 is: 7,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.40 : 8,669.40 = 5,042.40 : x
  2. Step 2: Convert to fraction form
    5,810.40/8,669.40 = 5,042.40/x
  3. Step 3: Cross multiply
    5,810.40x = 8,669.40 × 5,042.40
  4. Step 4: Simplify right side
    5,810.40x = 43,714,582.56
  5. Step 5: Solve for x
    x = 43,714,582.56/5,810.40
  6. Step 6: Final answer
    x = 7,523.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.