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Finding the Fourth Proportional to 27,153.45, 40,710.87 and 10,499.45

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Solution

The fourth proportional to 27,153.45, 40,710.87 and 10,499.45 is: 15,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,153.45 : 40,710.87 = 10,499.45 : x
  2. Step 2: Convert to fraction form
    27,153.45/40,710.87 = 10,499.45/x
  3. Step 3: Cross multiply
    27,153.45x = 40,710.87 × 10,499.45
  4. Step 4: Simplify right side
    27,153.45x = 427,441,540.47
  5. Step 5: Solve for x
    x = 427,441,540.47/27,153.45
  6. Step 6: Final answer
    x = 15,741.70

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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.