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Finding the Fourth Proportional to 58,605.48, 80,865.54 and 33,100.20

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Solution

The fourth proportional to 58,605.48, 80,865.54 and 33,100.20 is: 45,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,605.48 : 80,865.54 = 33,100.20 : x
  2. Step 2: Convert to fraction form
    58,605.48/80,865.54 = 33,100.20/x
  3. Step 3: Cross multiply
    58,605.48x = 80,865.54 × 33,100.20
  4. Step 4: Simplify right side
    58,605.48x = 2,676,665,547.11
  5. Step 5: Solve for x
    x = 2,676,665,547.11/58,605.48
  6. Step 6: Final answer
    x = 45,672.62

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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.