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Finding the Fourth Proportional to 46,718.55, 69,913.80 and 31,956.30

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Solution

The fourth proportional to 46,718.55, 69,913.80 and 31,956.30 is: 47,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,718.55 : 69,913.80 = 31,956.30 : x
  2. Step 2: Convert to fraction form
    46,718.55/69,913.80 = 31,956.30/x
  3. Step 3: Cross multiply
    46,718.55x = 69,913.80 × 31,956.30
  4. Step 4: Simplify right side
    46,718.55x = 2,234,186,366.94
  5. Step 5: Solve for x
    x = 2,234,186,366.94/46,718.55
  6. Step 6: Final answer
    x = 47,822.25

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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.