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Finding the Fourth Proportional to 11,707.54, 17,518.07 and 7,030.40

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Solution

The fourth proportional to 11,707.54, 17,518.07 and 7,030.40 is: 10,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.54 : 17,518.07 = 7,030.40 : x
  2. Step 2: Convert to fraction form
    11,707.54/17,518.07 = 7,030.40/x
  3. Step 3: Cross multiply
    11,707.54x = 17,518.07 × 7,030.40
  4. Step 4: Simplify right side
    11,707.54x = 123,158,969.31
  5. Step 5: Solve for x
    x = 123,158,969.31/11,707.54
  6. Step 6: Final answer
    x = 10,519.63

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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.