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Finding the Fourth Proportional to 35,753.40, 53,612.82 and 20,967.12

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Solution

The fourth proportional to 35,753.40, 53,612.82 and 20,967.12 is: 31,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,753.40 : 53,612.82 = 20,967.12 : x
  2. Step 2: Convert to fraction form
    35,753.40/53,612.82 = 20,967.12/x
  3. Step 3: Cross multiply
    35,753.40x = 53,612.82 × 20,967.12
  4. Step 4: Simplify right side
    35,753.40x = 1,124,106,430.48
  5. Step 5: Solve for x
    x = 1,124,106,430.48/35,753.40
  6. Step 6: Final answer
    x = 31,440.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.