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Finding the Fourth Proportional to 8,235.90, 11,365.50 and 4,699.08

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Solution

The fourth proportional to 8,235.90, 11,365.50 and 4,699.08 is: 6,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.90 : 11,365.50 = 4,699.08 : x
  2. Step 2: Convert to fraction form
    8,235.90/11,365.50 = 4,699.08/x
  3. Step 3: Cross multiply
    8,235.90x = 11,365.50 × 4,699.08
  4. Step 4: Simplify right side
    8,235.90x = 53,407,393.74
  5. Step 5: Solve for x
    x = 53,407,393.74/8,235.90
  6. Step 6: Final answer
    x = 6,484.71

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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.