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Finding the Fourth Proportional to 9,385.30, 14,092.80 and 8,703.10

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Solution

The fourth proportional to 9,385.30, 14,092.80 and 8,703.10 is: 13,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.30 : 14,092.80 = 8,703.10 : x
  2. Step 2: Convert to fraction form
    9,385.30/14,092.80 = 8,703.10/x
  3. Step 3: Cross multiply
    9,385.30x = 14,092.80 × 8,703.10
  4. Step 4: Simplify right side
    9,385.30x = 122,651,047.68
  5. Step 5: Solve for x
    x = 122,651,047.68/9,385.30
  6. Step 6: Final answer
    x = 13,068.42

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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.