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Finding the Fourth Proportional to 27,273.61, 40,905.78 and 7,547.55

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Solution

The fourth proportional to 27,273.61, 40,905.78 and 7,547.55 is: 11,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,273.61 : 40,905.78 = 7,547.55 : x
  2. Step 2: Convert to fraction form
    27,273.61/40,905.78 = 7,547.55/x
  3. Step 3: Cross multiply
    27,273.61x = 40,905.78 × 7,547.55
  4. Step 4: Simplify right side
    27,273.61x = 308,738,238.14
  5. Step 5: Solve for x
    x = 308,738,238.14/27,273.61
  6. Step 6: Final answer
    x = 11,320.04

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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.