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Finding the Fourth Proportional to 30,448.46, 45,663.46 and 11,727.05

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Solution

The fourth proportional to 30,448.46, 45,663.46 and 11,727.05 is: 17,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.46 : 45,663.46 = 11,727.05 : x
  2. Step 2: Convert to fraction form
    30,448.46/45,663.46 = 11,727.05/x
  3. Step 3: Cross multiply
    30,448.46x = 45,663.46 × 11,727.05
  4. Step 4: Simplify right side
    30,448.46x = 535,497,678.59
  5. Step 5: Solve for x
    x = 535,497,678.59/30,448.46
  6. Step 6: Final answer
    x = 17,587.02

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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.