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Finding the Fourth Proportional to 14,225.15, 19,631.04 and 7,851.84

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Solution

The fourth proportional to 14,225.15, 19,631.04 and 7,851.84 is: 10,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.15 : 19,631.04 = 7,851.84 : x
  2. Step 2: Convert to fraction form
    14,225.15/19,631.04 = 7,851.84/x
  3. Step 3: Cross multiply
    14,225.15x = 19,631.04 × 7,851.84
  4. Step 4: Simplify right side
    14,225.15x = 154,139,682.05
  5. Step 5: Solve for x
    x = 154,139,682.05/14,225.15
  6. Step 6: Final answer
    x = 10,835.72

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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.