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Finding the Fourth Proportional to 14,358.87, 21,530.21 and 5,583.74

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Solution

The fourth proportional to 14,358.87, 21,530.21 and 5,583.74 is: 8,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.87 : 21,530.21 = 5,583.74 : x
  2. Step 2: Convert to fraction form
    14,358.87/21,530.21 = 5,583.74/x
  3. Step 3: Cross multiply
    14,358.87x = 21,530.21 × 5,583.74
  4. Step 4: Simplify right side
    14,358.87x = 120,218,959.22
  5. Step 5: Solve for x
    x = 120,218,959.22/14,358.87
  6. Step 6: Final answer
    x = 8,372.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.