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Finding the Fourth Proportional to 28,980.84, 43,454.94 and 9,254.76

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Solution

The fourth proportional to 28,980.84, 43,454.94 and 9,254.76 is: 13,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.84 : 43,454.94 = 9,254.76 : x
  2. Step 2: Convert to fraction form
    28,980.84/43,454.94 = 9,254.76/x
  3. Step 3: Cross multiply
    28,980.84x = 43,454.94 × 9,254.76
  4. Step 4: Simplify right side
    28,980.84x = 402,165,040.51
  5. Step 5: Solve for x
    x = 402,165,040.51/28,980.84
  6. Step 6: Final answer
    x = 13,876.93

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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.