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Finding the Fourth Proportional to 14,553.30, 21,831.12 and 7,054.68

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Solution

The fourth proportional to 14,553.30, 21,831.12 and 7,054.68 is: 10,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553.30 : 21,831.12 = 7,054.68 : x
  2. Step 2: Convert to fraction form
    14,553.30/21,831.12 = 7,054.68/x
  3. Step 3: Cross multiply
    14,553.30x = 21,831.12 × 7,054.68
  4. Step 4: Simplify right side
    14,553.30x = 154,011,565.64
  5. Step 5: Solve for x
    x = 154,011,565.64/14,553.30
  6. Step 6: Final answer
    x = 10,582.59

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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.