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Finding the Fourth Proportional to 10,980.68, 15,156.18 and 6,733.16

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Solution

The fourth proportional to 10,980.68, 15,156.18 and 6,733.16 is: 9,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.68 : 15,156.18 = 6,733.16 : x
  2. Step 2: Convert to fraction form
    10,980.68/15,156.18 = 6,733.16/x
  3. Step 3: Cross multiply
    10,980.68x = 15,156.18 × 6,733.16
  4. Step 4: Simplify right side
    10,980.68x = 102,048,984.93
  5. Step 5: Solve for x
    x = 102,048,984.93/10,980.68
  6. Step 6: Final answer
    x = 9,293.50

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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.