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Finding the Fourth Proportional to 5,246.64, 7,218.72 and 5,117.04

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Solution

The fourth proportional to 5,246.64, 7,218.72 and 5,117.04 is: 7,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.64 : 7,218.72 = 5,117.04 : x
  2. Step 2: Convert to fraction form
    5,246.64/7,218.72 = 5,117.04/x
  3. Step 3: Cross multiply
    5,246.64x = 7,218.72 × 5,117.04
  4. Step 4: Simplify right side
    5,246.64x = 36,938,478.99
  5. Step 5: Solve for x
    x = 36,938,478.99/5,246.64
  6. Step 6: Final answer
    x = 7,040.41

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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.