Home / 10,002.08-13,802.64-5,525.60

Finding the Fourth Proportional to 10,002.08, 13,802.64 and 5,525.60

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Solution

The fourth proportional to 10,002.08, 13,802.64 and 5,525.60 is: 7,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.08 : 13,802.64 = 5,525.60 : x
  2. Step 2: Convert to fraction form
    10,002.08/13,802.64 = 5,525.60/x
  3. Step 3: Cross multiply
    10,002.08x = 13,802.64 × 5,525.60
  4. Step 4: Simplify right side
    10,002.08x = 76,267,867.58
  5. Step 5: Solve for x
    x = 76,267,867.58/10,002.08
  6. Step 6: Final answer
    x = 7,625.20

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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.