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Finding the Fourth Proportional to 14,592.32, 21,860.80 and 8,656.67

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Solution

The fourth proportional to 14,592.32, 21,860.80 and 8,656.67 is: 12,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,592.32 : 21,860.80 = 8,656.67 : x
  2. Step 2: Convert to fraction form
    14,592.32/21,860.80 = 8,656.67/x
  3. Step 3: Cross multiply
    14,592.32x = 21,860.80 × 8,656.67
  4. Step 4: Simplify right side
    14,592.32x = 189,241,727.41
  5. Step 5: Solve for x
    x = 189,241,727.41/14,592.32
  6. Step 6: Final answer
    x = 12,968.58

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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.