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Finding the Fourth Proportional to 10,653.13, 15,960.93 and 9,493.45

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Solution

The fourth proportional to 10,653.13, 15,960.93 and 9,493.45 is: 14,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.13 : 15,960.93 = 9,493.45 : x
  2. Step 2: Convert to fraction form
    10,653.13/15,960.93 = 9,493.45/x
  3. Step 3: Cross multiply
    10,653.13x = 15,960.93 × 9,493.45
  4. Step 4: Simplify right side
    10,653.13x = 151,524,290.91
  5. Step 5: Solve for x
    x = 151,524,290.91/10,653.13
  6. Step 6: Final answer
    x = 14,223.45

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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.