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Finding the Fourth Proportional to 14,358.90, 21,529.53 and 5,583.59

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Solution

The fourth proportional to 14,358.90, 21,529.53 and 5,583.59 is: 8,371.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.90 : 21,529.53 = 5,583.59 : x
  2. Step 2: Convert to fraction form
    14,358.90/21,529.53 = 5,583.59/x
  3. Step 3: Cross multiply
    14,358.90x = 21,529.53 × 5,583.59
  4. Step 4: Simplify right side
    14,358.90x = 120,212,068.41
  5. Step 5: Solve for x
    x = 120,212,068.41/14,358.90
  6. Step 6: Final answer
    x = 8,371.96

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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.