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Finding the Fourth Proportional to 7,522.80, 11,305.80 and 6,572.40

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Solution

The fourth proportional to 7,522.80, 11,305.80 and 6,572.40 is: 9,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,522.80 : 11,305.80 = 6,572.40 : x
  2. Step 2: Convert to fraction form
    7,522.80/11,305.80 = 6,572.40/x
  3. Step 3: Cross multiply
    7,522.80x = 11,305.80 × 6,572.40
  4. Step 4: Simplify right side
    7,522.80x = 74,306,239.92
  5. Step 5: Solve for x
    x = 74,306,239.92/7,522.80
  6. Step 6: Final answer
    x = 9,877.47

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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.