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Finding the Fourth Proportional to 12,326.48, 18,486.98 and 7,397.53

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Solution

The fourth proportional to 12,326.48, 18,486.98 and 7,397.53 is: 11,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.48 : 18,486.98 = 7,397.53 : x
  2. Step 2: Convert to fraction form
    12,326.48/18,486.98 = 7,397.53/x
  3. Step 3: Cross multiply
    12,326.48x = 18,486.98 × 7,397.53
  4. Step 4: Simplify right side
    12,326.48x = 136,757,975.31
  5. Step 5: Solve for x
    x = 136,757,975.31/12,326.48
  6. Step 6: Final answer
    x = 11,094.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.