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Finding the Fourth Proportional to 9,047.88, 12,476.02 and 5,686.65

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Solution

The fourth proportional to 9,047.88, 12,476.02 and 5,686.65 is: 7,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.88 : 12,476.02 = 5,686.65 : x
  2. Step 2: Convert to fraction form
    9,047.88/12,476.02 = 5,686.65/x
  3. Step 3: Cross multiply
    9,047.88x = 12,476.02 × 5,686.65
  4. Step 4: Simplify right side
    9,047.88x = 70,946,759.13
  5. Step 5: Solve for x
    x = 70,946,759.13/9,047.88
  6. Step 6: Final answer
    x = 7,841.26

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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.