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Finding the Fourth Proportional to 14,444.94, 21,660.90 and 6,649.50

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Solution

The fourth proportional to 14,444.94, 21,660.90 and 6,649.50 is: 9,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,444.94 : 21,660.90 = 6,649.50 : x
  2. Step 2: Convert to fraction form
    14,444.94/21,660.90 = 6,649.50/x
  3. Step 3: Cross multiply
    14,444.94x = 21,660.90 × 6,649.50
  4. Step 4: Simplify right side
    14,444.94x = 144,034,154.55
  5. Step 5: Solve for x
    x = 144,034,154.55/14,444.94
  6. Step 6: Final answer
    x = 9,971.25

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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.