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Finding the Fourth Proportional to 35,506.88, 48,984 and 21,351.68

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Solution

The fourth proportional to 35,506.88, 48,984 and 21,351.68 is: 29,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,506.88 : 48,984 = 21,351.68 : x
  2. Step 2: Convert to fraction form
    35,506.88/48,984 = 21,351.68/x
  3. Step 3: Cross multiply
    35,506.88x = 48,984 × 21,351.68
  4. Step 4: Simplify right side
    35,506.88x = 1,045,890,693.12
  5. Step 5: Solve for x
    x = 1,045,890,693.12/35,506.88
  6. Step 6: Final answer
    x = 29,456.00

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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.