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Finding the Fourth Proportional to 12,484.51, 17,228.64 and 6,895.51

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Solution

The fourth proportional to 12,484.51, 17,228.64 and 6,895.51 is: 9,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.51 : 17,228.64 = 6,895.51 : x
  2. Step 2: Convert to fraction form
    12,484.51/17,228.64 = 6,895.51/x
  3. Step 3: Cross multiply
    12,484.51x = 17,228.64 × 6,895.51
  4. Step 4: Simplify right side
    12,484.51x = 118,800,259.41
  5. Step 5: Solve for x
    x = 118,800,259.41/12,484.51
  6. Step 6: Final answer
    x = 9,515.81

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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.