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Finding the Fourth Proportional to 8,570.91, 12,854.57 and 3,304.11

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Solution

The fourth proportional to 8,570.91, 12,854.57 and 3,304.11 is: 4,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.91 : 12,854.57 = 3,304.11 : x
  2. Step 2: Convert to fraction form
    8,570.91/12,854.57 = 3,304.11/x
  3. Step 3: Cross multiply
    8,570.91x = 12,854.57 × 3,304.11
  4. Step 4: Simplify right side
    8,570.91x = 42,472,896.76
  5. Step 5: Solve for x
    x = 42,472,896.76/8,570.91
  6. Step 6: Final answer
    x = 4,955.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.