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Finding the Fourth Proportional to 14,656.18, 20,225.50 and 7,941.99

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Solution

The fourth proportional to 14,656.18, 20,225.50 and 7,941.99 is: 10,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,656.18 : 20,225.50 = 7,941.99 : x
  2. Step 2: Convert to fraction form
    14,656.18/20,225.50 = 7,941.99/x
  3. Step 3: Cross multiply
    14,656.18x = 20,225.50 × 7,941.99
  4. Step 4: Simplify right side
    14,656.18x = 160,630,718.75
  5. Step 5: Solve for x
    x = 160,630,718.75/14,656.18
  6. Step 6: Final answer
    x = 10,959.93

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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.