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Finding the Fourth Proportional to 8,605.39, 11,875.55 and 4,829.37

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Solution

The fourth proportional to 8,605.39, 11,875.55 and 4,829.37 is: 6,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.39 : 11,875.55 = 4,829.37 : x
  2. Step 2: Convert to fraction form
    8,605.39/11,875.55 = 4,829.37/x
  3. Step 3: Cross multiply
    8,605.39x = 11,875.55 × 4,829.37
  4. Step 4: Simplify right side
    8,605.39x = 57,351,341.38
  5. Step 5: Solve for x
    x = 57,351,341.38/8,605.39
  6. Step 6: Final answer
    x = 6,664.58

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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.