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Finding the Fourth Proportional to 16,487.80, 24,707.40 and 14,009.20

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Solution

The fourth proportional to 16,487.80, 24,707.40 and 14,009.20 is: 20,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.80 : 24,707.40 = 14,009.20 : x
  2. Step 2: Convert to fraction form
    16,487.80/24,707.40 = 14,009.20/x
  3. Step 3: Cross multiply
    16,487.80x = 24,707.40 × 14,009.20
  4. Step 4: Simplify right side
    16,487.80x = 346,130,908.08
  5. Step 5: Solve for x
    x = 346,130,908.08/16,487.80
  6. Step 6: Final answer
    x = 20,993.15

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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.