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Finding the Fourth Proportional to 14,917.68, 20,587.48 and 9,873.20

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Solution

The fourth proportional to 14,917.68, 20,587.48 and 9,873.20 is: 13,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,917.68 : 20,587.48 = 9,873.20 : x
  2. Step 2: Convert to fraction form
    14,917.68/20,587.48 = 9,873.20/x
  3. Step 3: Cross multiply
    14,917.68x = 20,587.48 × 9,873.20
  4. Step 4: Simplify right side
    14,917.68x = 203,264,307.54
  5. Step 5: Solve for x
    x = 203,264,307.54/14,917.68
  6. Step 6: Final answer
    x = 13,625.73

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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.