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Finding the Fourth Proportional to 27,159.06, 40,738.59 and 7,437.45

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Solution

The fourth proportional to 27,159.06, 40,738.59 and 7,437.45 is: 11,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,159.06 : 40,738.59 = 7,437.45 : x
  2. Step 2: Convert to fraction form
    27,159.06/40,738.59 = 7,437.45/x
  3. Step 3: Cross multiply
    27,159.06x = 40,738.59 × 7,437.45
  4. Step 4: Simplify right side
    27,159.06x = 302,991,226.20
  5. Step 5: Solve for x
    x = 302,991,226.20/27,159.06
  6. Step 6: Final answer
    x = 11,156.18

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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.