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Finding the Fourth Proportional to 14,574.90, 21,863.94 and 5,340.90

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Solution

The fourth proportional to 14,574.90, 21,863.94 and 5,340.90 is: 8,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.90 : 21,863.94 = 5,340.90 : x
  2. Step 2: Convert to fraction form
    14,574.90/21,863.94 = 5,340.90/x
  3. Step 3: Cross multiply
    14,574.90x = 21,863.94 × 5,340.90
  4. Step 4: Simplify right side
    14,574.90x = 116,773,117.15
  5. Step 5: Solve for x
    x = 116,773,117.15/14,574.90
  6. Step 6: Final answer
    x = 8,011.93

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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.