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Finding the Fourth Proportional to 9,159.93, 13,712.56 and 9,003.20

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Solution

The fourth proportional to 9,159.93, 13,712.56 and 9,003.20 is: 13,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.93 : 13,712.56 = 9,003.20 : x
  2. Step 2: Convert to fraction form
    9,159.93/13,712.56 = 9,003.20/x
  3. Step 3: Cross multiply
    9,159.93x = 13,712.56 × 9,003.20
  4. Step 4: Simplify right side
    9,159.93x = 123,456,829.12
  5. Step 5: Solve for x
    x = 123,456,829.12/9,159.93
  6. Step 6: Final answer
    x = 13,477.92

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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.