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Finding the Fourth Proportional to 5,328.72, 7,952.02 and 4,680.82

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Solution

The fourth proportional to 5,328.72, 7,952.02 and 4,680.82 is: 6,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.72 : 7,952.02 = 4,680.82 : x
  2. Step 2: Convert to fraction form
    5,328.72/7,952.02 = 4,680.82/x
  3. Step 3: Cross multiply
    5,328.72x = 7,952.02 × 4,680.82
  4. Step 4: Simplify right side
    5,328.72x = 37,221,974.26
  5. Step 5: Solve for x
    x = 37,221,974.26/5,328.72
  6. Step 6: Final answer
    x = 6,985.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.