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Finding the Fourth Proportional to 14,907.61, 20,560.18 and 10,119.68

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Solution

The fourth proportional to 14,907.61, 20,560.18 and 10,119.68 is: 13,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,907.61 : 20,560.18 = 10,119.68 : x
  2. Step 2: Convert to fraction form
    14,907.61/20,560.18 = 10,119.68/x
  3. Step 3: Cross multiply
    14,907.61x = 20,560.18 × 10,119.68
  4. Step 4: Simplify right side
    14,907.61x = 208,062,468.44
  5. Step 5: Solve for x
    x = 208,062,468.44/14,907.61
  6. Step 6: Final answer
    x = 13,956.80

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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.