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Finding the Fourth Proportional to 13,903.19, 20,802.46 and 9,751.30

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Solution

The fourth proportional to 13,903.19, 20,802.46 and 9,751.30 is: 14,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.19 : 20,802.46 = 9,751.30 : x
  2. Step 2: Convert to fraction form
    13,903.19/20,802.46 = 9,751.30/x
  3. Step 3: Cross multiply
    13,903.19x = 20,802.46 × 9,751.30
  4. Step 4: Simplify right side
    13,903.19x = 202,851,028.20
  5. Step 5: Solve for x
    x = 202,851,028.20/13,903.19
  6. Step 6: Final answer
    x = 14,590.25

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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.