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Finding the Fourth Proportional to 12,365.47, 17,064.36 and 6,776.47

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Solution

The fourth proportional to 12,365.47, 17,064.36 and 6,776.47 is: 9,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.47 : 17,064.36 = 6,776.47 : x
  2. Step 2: Convert to fraction form
    12,365.47/17,064.36 = 6,776.47/x
  3. Step 3: Cross multiply
    12,365.47x = 17,064.36 × 6,776.47
  4. Step 4: Simplify right side
    12,365.47x = 115,636,004.41
  5. Step 5: Solve for x
    x = 115,636,004.41/12,365.47
  6. Step 6: Final answer
    x = 9,351.53

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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.