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Finding the Fourth Proportional to 14,821.60, 22,232.40 and 7,448.80

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Solution

The fourth proportional to 14,821.60, 22,232.40 and 7,448.80 is: 11,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.60 : 22,232.40 = 7,448.80 : x
  2. Step 2: Convert to fraction form
    14,821.60/22,232.40 = 7,448.80/x
  3. Step 3: Cross multiply
    14,821.60x = 22,232.40 × 7,448.80
  4. Step 4: Simplify right side
    14,821.60x = 165,604,701.12
  5. Step 5: Solve for x
    x = 165,604,701.12/14,821.60
  6. Step 6: Final answer
    x = 11,173.20

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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.