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Finding the Fourth Proportional to 58,575.80, 80,820.78 and 33,433.40

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Solution

The fourth proportional to 58,575.80, 80,820.78 and 33,433.40 is: 46,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,575.80 : 80,820.78 = 33,433.40 : x
  2. Step 2: Convert to fraction form
    58,575.80/80,820.78 = 33,433.40/x
  3. Step 3: Cross multiply
    58,575.80x = 80,820.78 × 33,433.40
  4. Step 4: Simplify right side
    58,575.80x = 2,702,113,466.05
  5. Step 5: Solve for x
    x = 2,702,113,466.05/58,575.80
  6. Step 6: Final answer
    x = 46,130.20

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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.