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Finding the Fourth Proportional to 13,251.60, 19,873.08 and 7,008.12

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Solution

The fourth proportional to 13,251.60, 19,873.08 and 7,008.12 is: 10,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.60 : 19,873.08 = 7,008.12 : x
  2. Step 2: Convert to fraction form
    13,251.60/19,873.08 = 7,008.12/x
  3. Step 3: Cross multiply
    13,251.60x = 19,873.08 × 7,008.12
  4. Step 4: Simplify right side
    13,251.60x = 139,272,929.41
  5. Step 5: Solve for x
    x = 139,272,929.41/13,251.60
  6. Step 6: Final answer
    x = 10,509.90

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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.