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Finding the Fourth Proportional to 46,992.44, 70,488.86 and 11,931.99

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Solution

The fourth proportional to 46,992.44, 70,488.86 and 11,931.99 is: 17,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,992.44 : 70,488.86 = 11,931.99 : x
  2. Step 2: Convert to fraction form
    46,992.44/70,488.86 = 11,931.99/x
  3. Step 3: Cross multiply
    46,992.44x = 70,488.86 × 11,931.99
  4. Step 4: Simplify right side
    46,992.44x = 841,072,312.97
  5. Step 5: Solve for x
    x = 841,072,312.97/46,992.44
  6. Step 6: Final answer
    x = 17,898.04

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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.