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Finding the Fourth Proportional to 58,071.44, 80,143.80 and 35,411.70

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Solution

The fourth proportional to 58,071.44, 80,143.80 and 35,411.70 is: 48,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,071.44 : 80,143.80 = 35,411.70 : x
  2. Step 2: Convert to fraction form
    58,071.44/80,143.80 = 35,411.70/x
  3. Step 3: Cross multiply
    58,071.44x = 80,143.80 × 35,411.70
  4. Step 4: Simplify right side
    58,071.44x = 2,838,028,202.46
  5. Step 5: Solve for x
    x = 2,838,028,202.46/58,071.44
  6. Step 6: Final answer
    x = 48,871.32

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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.