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Finding the Fourth Proportional to 14,675.95, 20,251.47 and 8,303.12

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Solution

The fourth proportional to 14,675.95, 20,251.47 and 8,303.12 is: 11,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,675.95 : 20,251.47 = 8,303.12 : x
  2. Step 2: Convert to fraction form
    14,675.95/20,251.47 = 8,303.12/x
  3. Step 3: Cross multiply
    14,675.95x = 20,251.47 × 8,303.12
  4. Step 4: Simplify right side
    14,675.95x = 168,150,373.18
  5. Step 5: Solve for x
    x = 168,150,373.18/14,675.95
  6. Step 6: Final answer
    x = 11,457.55

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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.