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Finding the Fourth Proportional to 51,485.80, 71,038.17 and 29,962.51

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Solution

The fourth proportional to 51,485.80, 71,038.17 and 29,962.51 is: 41,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,485.80 : 71,038.17 = 29,962.51 : x
  2. Step 2: Convert to fraction form
    51,485.80/71,038.17 = 29,962.51/x
  3. Step 3: Cross multiply
    51,485.80x = 71,038.17 × 29,962.51
  4. Step 4: Simplify right side
    51,485.80x = 2,128,481,879.01
  5. Step 5: Solve for x
    x = 2,128,481,879.01/51,485.80
  6. Step 6: Final answer
    x = 41,341.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.