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Finding the Fourth Proportional to 57,602.25, 79,491.11 and 31,106.25

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Solution

The fourth proportional to 57,602.25, 79,491.11 and 31,106.25 is: 42,926.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,602.25 : 79,491.11 = 31,106.25 : x
  2. Step 2: Convert to fraction form
    57,602.25/79,491.11 = 31,106.25/x
  3. Step 3: Cross multiply
    57,602.25x = 79,491.11 × 31,106.25
  4. Step 4: Simplify right side
    57,602.25x = 2,472,670,184.91
  5. Step 5: Solve for x
    x = 2,472,670,184.91/57,602.25
  6. Step 6: Final answer
    x = 42,926.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.