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Finding the Fourth Proportional to 9,233.60, 13,859.20 and 8,590.08

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Solution

The fourth proportional to 9,233.60, 13,859.20 and 8,590.08 is: 12,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,233.60 : 13,859.20 = 8,590.08 : x
  2. Step 2: Convert to fraction form
    9,233.60/13,859.20 = 8,590.08/x
  3. Step 3: Cross multiply
    9,233.60x = 13,859.20 × 8,590.08
  4. Step 4: Simplify right side
    9,233.60x = 119,051,636.74
  5. Step 5: Solve for x
    x = 119,051,636.74/9,233.60
  6. Step 6: Final answer
    x = 12,893.31

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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.