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Finding the Fourth Proportional to 42,571.99, 63,803.13 and 39,914.74

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Solution

The fourth proportional to 42,571.99, 63,803.13 and 39,914.74 is: 59,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,571.99 : 63,803.13 = 39,914.74 : x
  2. Step 2: Convert to fraction form
    42,571.99/63,803.13 = 39,914.74/x
  3. Step 3: Cross multiply
    42,571.99x = 63,803.13 × 39,914.74
  4. Step 4: Simplify right side
    42,571.99x = 2,546,685,345.14
  5. Step 5: Solve for x
    x = 2,546,685,345.14/42,571.99
  6. Step 6: Final answer
    x = 59,820.68

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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.