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Finding the Fourth Proportional to 13,295.47, 18,347.08 and 7,326.17

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Solution

The fourth proportional to 13,295.47, 18,347.08 and 7,326.17 is: 10,109.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.47 : 18,347.08 = 7,326.17 : x
  2. Step 2: Convert to fraction form
    13,295.47/18,347.08 = 7,326.17/x
  3. Step 3: Cross multiply
    13,295.47x = 18,347.08 × 7,326.17
  4. Step 4: Simplify right side
    13,295.47x = 134,413,827.08
  5. Step 5: Solve for x
    x = 134,413,827.08/13,295.47
  6. Step 6: Final answer
    x = 10,109.75

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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.