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Finding the Fourth Proportional to 93,482.91, 128,965.26 and 63,257.66

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Solution

The fourth proportional to 93,482.91, 128,965.26 and 63,257.66 is: 87,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,482.91 : 128,965.26 = 63,257.66 : x
  2. Step 2: Convert to fraction form
    93,482.91/128,965.26 = 63,257.66/x
  3. Step 3: Cross multiply
    93,482.91x = 128,965.26 × 63,257.66
  4. Step 4: Simplify right side
    93,482.91x = 8,158,040,644.90
  5. Step 5: Solve for x
    x = 8,158,040,644.90/93,482.91
  6. Step 6: Final answer
    x = 87,267.72

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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.