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Finding the Fourth Proportional to 12,041.20, 16,869.20 and 12,041.20

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Solution

The fourth proportional to 12,041.20, 16,869.20 and 12,041.20 is: 16,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.20 : 16,869.20 = 12,041.20 : x
  2. Step 2: Convert to fraction form
    12,041.20/16,869.20 = 12,041.20/x
  3. Step 3: Cross multiply
    12,041.20x = 16,869.20 × 12,041.20
  4. Step 4: Simplify right side
    12,041.20x = 203,125,411.04
  5. Step 5: Solve for x
    x = 203,125,411.04/12,041.20
  6. Step 6: Final answer
    x = 16,869.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.