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Finding the Fourth Proportional to 13,262.65, 18,302.10 and 7,294.32

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Solution

The fourth proportional to 13,262.65, 18,302.10 and 7,294.32 is: 10,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.65 : 18,302.10 = 7,294.32 : x
  2. Step 2: Convert to fraction form
    13,262.65/18,302.10 = 7,294.32/x
  3. Step 3: Cross multiply
    13,262.65x = 18,302.10 × 7,294.32
  4. Step 4: Simplify right side
    13,262.65x = 133,501,374.07
  5. Step 5: Solve for x
    x = 133,501,374.07/13,262.65
  6. Step 6: Final answer
    x = 10,065.97

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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.