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Finding the Fourth Proportional to 53,488.80, 73,812.72 and 29,616.48

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Solution

The fourth proportional to 53,488.80, 73,812.72 and 29,616.48 is: 40,869.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,488.80 : 73,812.72 = 29,616.48 : x
  2. Step 2: Convert to fraction form
    53,488.80/73,812.72 = 29,616.48/x
  3. Step 3: Cross multiply
    53,488.80x = 73,812.72 × 29,616.48
  4. Step 4: Simplify right side
    53,488.80x = 2,186,072,945.63
  5. Step 5: Solve for x
    x = 2,186,072,945.63/53,488.80
  6. Step 6: Final answer
    x = 40,869.73

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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.