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Finding the Fourth Proportional to 10,893.83, 15,047.55 and 9,013.01

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Solution

The fourth proportional to 10,893.83, 15,047.55 and 9,013.01 is: 12,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.83 : 15,047.55 = 9,013.01 : x
  2. Step 2: Convert to fraction form
    10,893.83/15,047.55 = 9,013.01/x
  3. Step 3: Cross multiply
    10,893.83x = 15,047.55 × 9,013.01
  4. Step 4: Simplify right side
    10,893.83x = 135,623,643.39
  5. Step 5: Solve for x
    x = 135,623,643.39/10,893.83
  6. Step 6: Final answer
    x = 12,449.59

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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.