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Finding the Fourth Proportional to 9,154.72, 13,710.06 and 8,695.36

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Solution

The fourth proportional to 9,154.72, 13,710.06 and 8,695.36 is: 13,022.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.72 : 13,710.06 = 8,695.36 : x
  2. Step 2: Convert to fraction form
    9,154.72/13,710.06 = 8,695.36/x
  3. Step 3: Cross multiply
    9,154.72x = 13,710.06 × 8,695.36
  4. Step 4: Simplify right side
    9,154.72x = 119,213,907.32
  5. Step 5: Solve for x
    x = 119,213,907.32/9,154.72
  6. Step 6: Final answer
    x = 13,022.12

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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.