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Finding the Fourth Proportional to 7,192.03, 9,903.54 and 7,028.28

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Solution

The fourth proportional to 7,192.03, 9,903.54 and 7,028.28 is: 9,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.03 : 9,903.54 = 7,028.28 : x
  2. Step 2: Convert to fraction form
    7,192.03/9,903.54 = 7,028.28/x
  3. Step 3: Cross multiply
    7,192.03x = 9,903.54 × 7,028.28
  4. Step 4: Simplify right side
    7,192.03x = 69,604,852.11
  5. Step 5: Solve for x
    x = 69,604,852.11/7,192.03
  6. Step 6: Final answer
    x = 9,678.05

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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.