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Finding the Fourth Proportional to 46,981.48, 70,472.70 and 15,816.76

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Solution

The fourth proportional to 46,981.48, 70,472.70 and 15,816.76 is: 23,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,981.48 : 70,472.70 = 15,816.76 : x
  2. Step 2: Convert to fraction form
    46,981.48/70,472.70 = 15,816.76/x
  3. Step 3: Cross multiply
    46,981.48x = 70,472.70 × 15,816.76
  4. Step 4: Simplify right side
    46,981.48x = 1,114,649,782.45
  5. Step 5: Solve for x
    x = 1,114,649,782.45/46,981.48
  6. Step 6: Final answer
    x = 23,725.30

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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.