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Finding the Fourth Proportional to 6,899.04, 9,521.52 and 4,551.72

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Solution

The fourth proportional to 6,899.04, 9,521.52 and 4,551.72 is: 6,281.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.04 : 9,521.52 = 4,551.72 : x
  2. Step 2: Convert to fraction form
    6,899.04/9,521.52 = 4,551.72/x
  3. Step 3: Cross multiply
    6,899.04x = 9,521.52 × 4,551.72
  4. Step 4: Simplify right side
    6,899.04x = 43,339,293.01
  5. Step 5: Solve for x
    x = 43,339,293.01/6,899.04
  6. Step 6: Final answer
    x = 6,281.93

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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.