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Finding the Fourth Proportional to 93,797.72, 129,426.90 and 56,984.82

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Solution

The fourth proportional to 93,797.72, 129,426.90 and 56,984.82 is: 78,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,797.72 : 129,426.90 = 56,984.82 : x
  2. Step 2: Convert to fraction form
    93,797.72/129,426.90 = 56,984.82/x
  3. Step 3: Cross multiply
    93,797.72x = 129,426.90 × 56,984.82
  4. Step 4: Simplify right side
    93,797.72x = 7,375,368,599.66
  5. Step 5: Solve for x
    x = 7,375,368,599.66/93,797.72
  6. Step 6: Final answer
    x = 78,630.58

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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.