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Finding the Fourth Proportional to 14,572.84, 21,859.26 and 5,807.84

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Solution

The fourth proportional to 14,572.84, 21,859.26 and 5,807.84 is: 8,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.84 : 21,859.26 = 5,807.84 : x
  2. Step 2: Convert to fraction form
    14,572.84/21,859.26 = 5,807.84/x
  3. Step 3: Cross multiply
    14,572.84x = 21,859.26 × 5,807.84
  4. Step 4: Simplify right side
    14,572.84x = 126,955,084.60
  5. Step 5: Solve for x
    x = 126,955,084.60/14,572.84
  6. Step 6: Final answer
    x = 8,711.76

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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.