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Finding the Fourth Proportional to 58,841.51, 81,202.70 and 31,985.48

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Solution

The fourth proportional to 58,841.51, 81,202.70 and 31,985.48 is: 44,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,841.51 : 81,202.70 = 31,985.48 : x
  2. Step 2: Convert to fraction form
    58,841.51/81,202.70 = 31,985.48/x
  3. Step 3: Cross multiply
    58,841.51x = 81,202.70 × 31,985.48
  4. Step 4: Simplify right side
    58,841.51x = 2,597,307,619.77
  5. Step 5: Solve for x
    x = 2,597,307,619.77/58,841.51
  6. Step 6: Final answer
    x = 44,140.74

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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.