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Finding the Fourth Proportional to 17,760.60, 24,509.88 and 9,802.80

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Solution

The fourth proportional to 17,760.60, 24,509.88 and 9,802.80 is: 13,528.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.60 : 24,509.88 = 9,802.80 : x
  2. Step 2: Convert to fraction form
    17,760.60/24,509.88 = 9,802.80/x
  3. Step 3: Cross multiply
    17,760.60x = 24,509.88 × 9,802.80
  4. Step 4: Simplify right side
    17,760.60x = 240,265,451.66
  5. Step 5: Solve for x
    x = 240,265,451.66/17,760.60
  6. Step 6: Final answer
    x = 13,528.00

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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.