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Finding the Fourth Proportional to 14,980.00, 20,671.71 and 8,602.11

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Solution

The fourth proportional to 14,980.00, 20,671.71 and 8,602.11 is: 11,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.00 : 20,671.71 = 8,602.11 : x
  2. Step 2: Convert to fraction form
    14,980.00/20,671.71 = 8,602.11/x
  3. Step 3: Cross multiply
    14,980.00x = 20,671.71 × 8,602.11
  4. Step 4: Simplify right side
    14,980.00x = 177,820,254.67
  5. Step 5: Solve for x
    x = 177,820,254.67/14,980.00
  6. Step 6: Final answer
    x = 11,870.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.