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Finding the Fourth Proportional to 48,407.48, 66,809.74 and 29,555.64

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Solution

The fourth proportional to 48,407.48, 66,809.74 and 29,555.64 is: 40,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.48 : 66,809.74 = 29,555.64 : x
  2. Step 2: Convert to fraction form
    48,407.48/66,809.74 = 29,555.64/x
  3. Step 3: Cross multiply
    48,407.48x = 66,809.74 × 29,555.64
  4. Step 4: Simplify right side
    48,407.48x = 1,974,604,623.93
  5. Step 5: Solve for x
    x = 1,974,604,623.93/48,407.48
  6. Step 6: Final answer
    x = 40,791.31

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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.