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Finding the Fourth Proportional to 14,669.60, 22,007.64 and 7,278.08

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Solution

The fourth proportional to 14,669.60, 22,007.64 and 7,278.08 is: 10,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.60 : 22,007.64 = 7,278.08 : x
  2. Step 2: Convert to fraction form
    14,669.60/22,007.64 = 7,278.08/x
  3. Step 3: Cross multiply
    14,669.60x = 22,007.64 × 7,278.08
  4. Step 4: Simplify right side
    14,669.60x = 160,173,364.53
  5. Step 5: Solve for x
    x = 160,173,364.53/14,669.60
  6. Step 6: Final answer
    x = 10,918.73

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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.