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Finding the Fourth Proportional to 58,407.36, 80,602.19 and 31,549.87

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Solution

The fourth proportional to 58,407.36, 80,602.19 and 31,549.87 is: 43,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,407.36 : 80,602.19 = 31,549.87 : x
  2. Step 2: Convert to fraction form
    58,407.36/80,602.19 = 31,549.87/x
  3. Step 3: Cross multiply
    58,407.36x = 80,602.19 × 31,549.87
  4. Step 4: Simplify right side
    58,407.36x = 2,542,988,616.22
  5. Step 5: Solve for x
    x = 2,542,988,616.22/58,407.36
  6. Step 6: Final answer
    x = 43,538.84

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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.