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Finding the Fourth Proportional to 15,562.54, 21,475.82 and 8,848.90

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Solution

The fourth proportional to 15,562.54, 21,475.82 and 8,848.90 is: 12,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.54 : 21,475.82 = 8,848.90 : x
  2. Step 2: Convert to fraction form
    15,562.54/21,475.82 = 8,848.90/x
  3. Step 3: Cross multiply
    15,562.54x = 21,475.82 × 8,848.90
  4. Step 4: Simplify right side
    15,562.54x = 190,037,383.60
  5. Step 5: Solve for x
    x = 190,037,383.60/15,562.54
  6. Step 6: Final answer
    x = 12,211.21

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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.