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Finding the Fourth Proportional to 13,598.96, 18,773.08 and 8,565.62

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Solution

The fourth proportional to 13,598.96, 18,773.08 and 8,565.62 is: 11,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.96 : 18,773.08 = 8,565.62 : x
  2. Step 2: Convert to fraction form
    13,598.96/18,773.08 = 8,565.62/x
  3. Step 3: Cross multiply
    13,598.96x = 18,773.08 × 8,565.62
  4. Step 4: Simplify right side
    13,598.96x = 160,803,069.51
  5. Step 5: Solve for x
    x = 160,803,069.51/13,598.96
  6. Step 6: Final answer
    x = 11,824.66

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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.