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Finding the Fourth Proportional to 28,553.51, 42,822.07 and 9,832.79

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Solution

The fourth proportional to 28,553.51, 42,822.07 and 9,832.79 is: 14,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.51 : 42,822.07 = 9,832.79 : x
  2. Step 2: Convert to fraction form
    28,553.51/42,822.07 = 9,832.79/x
  3. Step 3: Cross multiply
    28,553.51x = 42,822.07 × 9,832.79
  4. Step 4: Simplify right side
    28,553.51x = 421,060,504.15
  5. Step 5: Solve for x
    x = 421,060,504.15/28,553.51
  6. Step 6: Final answer
    x = 14,746.36

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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.