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Finding the Fourth Proportional to 14,133.66, 21,210.20 and 4,899.66

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Solution

The fourth proportional to 14,133.66, 21,210.20 and 4,899.66 is: 7,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.66 : 21,210.20 = 4,899.66 : x
  2. Step 2: Convert to fraction form
    14,133.66/21,210.20 = 4,899.66/x
  3. Step 3: Cross multiply
    14,133.66x = 21,210.20 × 4,899.66
  4. Step 4: Simplify right side
    14,133.66x = 103,922,710.43
  5. Step 5: Solve for x
    x = 103,922,710.43/14,133.66
  6. Step 6: Final answer
    x = 7,352.85

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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.