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Finding the Fourth Proportional to 15,773.04, 21,766.68 and 8,699.32

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Solution

The fourth proportional to 15,773.04, 21,766.68 and 8,699.32 is: 12,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,773.04 : 21,766.68 = 8,699.32 : x
  2. Step 2: Convert to fraction form
    15,773.04/21,766.68 = 8,699.32/x
  3. Step 3: Cross multiply
    15,773.04x = 21,766.68 × 8,699.32
  4. Step 4: Simplify right side
    15,773.04x = 189,355,314.66
  5. Step 5: Solve for x
    x = 189,355,314.66/15,773.04
  6. Step 6: Final answer
    x = 12,005.00

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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.