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Finding the Fourth Proportional to 67,870.60, 93,672.68 and 37,665.63

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Solution

The fourth proportional to 67,870.60, 93,672.68 and 37,665.63 is: 51,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,870.60 : 93,672.68 = 37,665.63 : x
  2. Step 2: Convert to fraction form
    67,870.60/93,672.68 = 37,665.63/x
  3. Step 3: Cross multiply
    67,870.60x = 93,672.68 × 37,665.63
  4. Step 4: Simplify right side
    67,870.60x = 3,528,240,505.99
  5. Step 5: Solve for x
    x = 3,528,240,505.99/67,870.60
  6. Step 6: Final answer
    x = 51,984.81

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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.