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Finding the Fourth Proportional to 29,980.87, 44,971.71 and 11,257.45

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Solution

The fourth proportional to 29,980.87, 44,971.71 and 11,257.45 is: 16,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.87 : 44,971.71 = 11,257.45 : x
  2. Step 2: Convert to fraction form
    29,980.87/44,971.71 = 11,257.45/x
  3. Step 3: Cross multiply
    29,980.87x = 44,971.71 × 11,257.45
  4. Step 4: Simplify right side
    29,980.87x = 506,266,776.74
  5. Step 5: Solve for x
    x = 506,266,776.74/29,980.87
  6. Step 6: Final answer
    x = 16,886.33

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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.