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Finding the Fourth Proportional to 14,873.23, 20,526.78 and 8,904.90

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Solution

The fourth proportional to 14,873.23, 20,526.78 and 8,904.90 is: 12,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,873.23 : 20,526.78 = 8,904.90 : x
  2. Step 2: Convert to fraction form
    14,873.23/20,526.78 = 8,904.90/x
  3. Step 3: Cross multiply
    14,873.23x = 20,526.78 × 8,904.90
  4. Step 4: Simplify right side
    14,873.23x = 182,788,923.22
  5. Step 5: Solve for x
    x = 182,788,923.22/14,873.23
  6. Step 6: Final answer
    x = 12,289.79

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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.