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Finding the Fourth Proportional to 48,509.90, 66,876.88 and 33,193.62

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Solution

The fourth proportional to 48,509.90, 66,876.88 and 33,193.62 is: 45,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,509.90 : 66,876.88 = 33,193.62 : x
  2. Step 2: Convert to fraction form
    48,509.90/66,876.88 = 33,193.62/x
  3. Step 3: Cross multiply
    48,509.90x = 66,876.88 × 33,193.62
  4. Step 4: Simplify right side
    48,509.90x = 2,219,885,741.51
  5. Step 5: Solve for x
    x = 2,219,885,741.51/48,509.90
  6. Step 6: Final answer
    x = 45,761.50

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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.