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Finding the Fourth Proportional to 58,980.60, 81,392.40 and 33,486.76

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Solution

The fourth proportional to 58,980.60, 81,392.40 and 33,486.76 is: 46,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,980.60 : 81,392.40 = 33,486.76 : x
  2. Step 2: Convert to fraction form
    58,980.60/81,392.40 = 33,486.76/x
  3. Step 3: Cross multiply
    58,980.60x = 81,392.40 × 33,486.76
  4. Step 4: Simplify right side
    58,980.60x = 2,725,567,764.62
  5. Step 5: Solve for x
    x = 2,725,567,764.62/58,980.60
  6. Step 6: Final answer
    x = 46,211.26

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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.