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Finding the Fourth Proportional to 27,590.55, 41,386.20 and 7,869.11

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Solution

The fourth proportional to 27,590.55, 41,386.20 and 7,869.11 is: 11,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,590.55 : 41,386.20 = 7,869.11 : x
  2. Step 2: Convert to fraction form
    27,590.55/41,386.20 = 7,869.11/x
  3. Step 3: Cross multiply
    27,590.55x = 41,386.20 × 7,869.11
  4. Step 4: Simplify right side
    27,590.55x = 325,672,353.35
  5. Step 5: Solve for x
    x = 325,672,353.35/27,590.55
  6. Step 6: Final answer
    x = 11,803.76

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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.