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Finding the Fourth Proportional to 9,702.59, 13,378.97 and 6,553.31

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Solution

The fourth proportional to 9,702.59, 13,378.97 and 6,553.31 is: 9,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702.59 : 13,378.97 = 6,553.31 : x
  2. Step 2: Convert to fraction form
    9,702.59/13,378.97 = 6,553.31/x
  3. Step 3: Cross multiply
    9,702.59x = 13,378.97 × 6,553.31
  4. Step 4: Simplify right side
    9,702.59x = 87,676,438.23
  5. Step 5: Solve for x
    x = 87,676,438.23/9,702.59
  6. Step 6: Final answer
    x = 9,036.40

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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.