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Finding the Fourth Proportional to 46,881.72, 70,328.98 and 15,709.88

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Solution

The fourth proportional to 46,881.72, 70,328.98 and 15,709.88 is: 23,566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,881.72 : 70,328.98 = 15,709.88 : x
  2. Step 2: Convert to fraction form
    46,881.72/70,328.98 = 15,709.88/x
  3. Step 3: Cross multiply
    46,881.72x = 70,328.98 × 15,709.88
  4. Step 4: Simplify right side
    46,881.72x = 1,104,859,836.32
  5. Step 5: Solve for x
    x = 1,104,859,836.32/46,881.72
  6. Step 6: Final answer
    x = 23,566.96

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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.