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Finding the Fourth Proportional to 27,750.76, 41,624.32 and 11,955.16

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Solution

The fourth proportional to 27,750.76, 41,624.32 and 11,955.16 is: 17,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.76 : 41,624.32 = 11,955.16 : x
  2. Step 2: Convert to fraction form
    27,750.76/41,624.32 = 11,955.16/x
  3. Step 3: Cross multiply
    27,750.76x = 41,624.32 × 11,955.16
  4. Step 4: Simplify right side
    27,750.76x = 497,625,405.49
  5. Step 5: Solve for x
    x = 497,625,405.49/27,750.76
  6. Step 6: Final answer
    x = 17,931.96

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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.