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Finding the Fourth Proportional to 15,140.10, 20,893.82 and 9,473.03

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Solution

The fourth proportional to 15,140.10, 20,893.82 and 9,473.03 is: 13,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.10 : 20,893.82 = 9,473.03 : x
  2. Step 2: Convert to fraction form
    15,140.10/20,893.82 = 9,473.03/x
  3. Step 3: Cross multiply
    15,140.10x = 20,893.82 × 9,473.03
  4. Step 4: Simplify right side
    15,140.10x = 197,927,783.67
  5. Step 5: Solve for x
    x = 197,927,783.67/15,140.10
  6. Step 6: Final answer
    x = 13,073.08

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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.