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Finding the Fourth Proportional to 9,796.80, 14,673.60 and 8,702.40

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Solution

The fourth proportional to 9,796.80, 14,673.60 and 8,702.40 is: 13,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,796.80 : 14,673.60 = 8,702.40 : x
  2. Step 2: Convert to fraction form
    9,796.80/14,673.60 = 8,702.40/x
  3. Step 3: Cross multiply
    9,796.80x = 14,673.60 × 8,702.40
  4. Step 4: Simplify right side
    9,796.80x = 127,695,536.64
  5. Step 5: Solve for x
    x = 127,695,536.64/9,796.80
  6. Step 6: Final answer
    x = 13,034.41

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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.