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Finding the Fourth Proportional to 5,671.80, 8,460.54 and 5,581.08

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Solution

The fourth proportional to 5,671.80, 8,460.54 and 5,581.08 is: 8,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.80 : 8,460.54 = 5,581.08 : x
  2. Step 2: Convert to fraction form
    5,671.80/8,460.54 = 5,581.08/x
  3. Step 3: Cross multiply
    5,671.80x = 8,460.54 × 5,581.08
  4. Step 4: Simplify right side
    5,671.80x = 47,218,950.58
  5. Step 5: Solve for x
    x = 47,218,950.58/5,671.80
  6. Step 6: Final answer
    x = 8,325.21

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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.