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Finding the Fourth Proportional to 5,312.32, 7,965.78 and 1,801.24

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Solution

The fourth proportional to 5,312.32, 7,965.78 and 1,801.24 is: 2,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.32 : 7,965.78 = 1,801.24 : x
  2. Step 2: Convert to fraction form
    5,312.32/7,965.78 = 1,801.24/x
  3. Step 3: Cross multiply
    5,312.32x = 7,965.78 × 1,801.24
  4. Step 4: Simplify right side
    5,312.32x = 14,348,281.57
  5. Step 5: Solve for x
    x = 14,348,281.57/5,312.32
  6. Step 6: Final answer
    x = 2,700.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.