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Finding the Fourth Proportional to 70,812.63, 106,218.95 and 17,504.51

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Solution

The fourth proportional to 70,812.63, 106,218.95 and 17,504.51 is: 26,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,812.63 : 106,218.95 = 17,504.51 : x
  2. Step 2: Convert to fraction form
    70,812.63/106,218.95 = 17,504.51/x
  3. Step 3: Cross multiply
    70,812.63x = 106,218.95 × 17,504.51
  4. Step 4: Simplify right side
    70,812.63x = 1,859,310,053.85
  5. Step 5: Solve for x
    x = 1,859,310,053.85/70,812.63
  6. Step 6: Final answer
    x = 26,256.76

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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.