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Finding the Fourth Proportional to 14,008.70, 20,980.65 and 9,602.30

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Solution

The fourth proportional to 14,008.70, 20,980.65 and 9,602.30 is: 14,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.70 : 20,980.65 = 9,602.30 : x
  2. Step 2: Convert to fraction form
    14,008.70/20,980.65 = 9,602.30/x
  3. Step 3: Cross multiply
    14,008.70x = 20,980.65 × 9,602.30
  4. Step 4: Simplify right side
    14,008.70x = 201,462,495.50
  5. Step 5: Solve for x
    x = 201,462,495.50/14,008.70
  6. Step 6: Final answer
    x = 14,381.24

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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.