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Finding the Fourth Proportional to 7,368.64, 10,169.44 and 5,502.40

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Solution

The fourth proportional to 7,368.64, 10,169.44 and 5,502.40 is: 7,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.64 : 10,169.44 = 5,502.40 : x
  2. Step 2: Convert to fraction form
    7,368.64/10,169.44 = 5,502.40/x
  3. Step 3: Cross multiply
    7,368.64x = 10,169.44 × 5,502.40
  4. Step 4: Simplify right side
    7,368.64x = 55,956,326.66
  5. Step 5: Solve for x
    x = 55,956,326.66/7,368.64
  6. Step 6: Final answer
    x = 7,593.85

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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.