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Finding the Fourth Proportional to 14,465.54, 21,696.68 and 9,815.42

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Solution

The fourth proportional to 14,465.54, 21,696.68 and 9,815.42 is: 14,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.54 : 21,696.68 = 9,815.42 : x
  2. Step 2: Convert to fraction form
    14,465.54/21,696.68 = 9,815.42/x
  3. Step 3: Cross multiply
    14,465.54x = 21,696.68 × 9,815.42
  4. Step 4: Simplify right side
    14,465.54x = 212,962,026.81
  5. Step 5: Solve for x
    x = 212,962,026.81/14,465.54
  6. Step 6: Final answer
    x = 14,722.02

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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.