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Finding the Fourth Proportional to 10,900.29, 15,046.92 and 7,368.29

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Solution

The fourth proportional to 10,900.29, 15,046.92 and 7,368.29 is: 10,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.29 : 15,046.92 = 7,368.29 : x
  2. Step 2: Convert to fraction form
    10,900.29/15,046.92 = 7,368.29/x
  3. Step 3: Cross multiply
    10,900.29x = 15,046.92 × 7,368.29
  4. Step 4: Simplify right side
    10,900.29x = 110,869,994.93
  5. Step 5: Solve for x
    x = 110,869,994.93/10,900.29
  6. Step 6: Final answer
    x = 10,171.29

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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.