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Finding the Fourth Proportional to 14,862.20, 20,493.04 and 9,477.44

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Solution

The fourth proportional to 14,862.20, 20,493.04 and 9,477.44 is: 13,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.20 : 20,493.04 = 9,477.44 : x
  2. Step 2: Convert to fraction form
    14,862.20/20,493.04 = 9,477.44/x
  3. Step 3: Cross multiply
    14,862.20x = 20,493.04 × 9,477.44
  4. Step 4: Simplify right side
    14,862.20x = 194,221,557.02
  5. Step 5: Solve for x
    x = 194,221,557.02/14,862.20
  6. Step 6: Final answer
    x = 13,068.16

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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.