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Finding the Fourth Proportional to 31,330.68, 46,995.92 and 7,957.08

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Solution

The fourth proportional to 31,330.68, 46,995.92 and 7,957.08 is: 11,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.68 : 46,995.92 = 7,957.08 : x
  2. Step 2: Convert to fraction form
    31,330.68/46,995.92 = 7,957.08/x
  3. Step 3: Cross multiply
    31,330.68x = 46,995.92 × 7,957.08
  4. Step 4: Simplify right side
    31,330.68x = 373,950,295.11
  5. Step 5: Solve for x
    x = 373,950,295.11/31,330.68
  6. Step 6: Final answer
    x = 11,935.59

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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.