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Finding the Fourth Proportional to 5,492.52, 7,580.28 and 5,320.20

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Solution

The fourth proportional to 5,492.52, 7,580.28 and 5,320.20 is: 7,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.52 : 7,580.28 = 5,320.20 : x
  2. Step 2: Convert to fraction form
    5,492.52/7,580.28 = 5,320.20/x
  3. Step 3: Cross multiply
    5,492.52x = 7,580.28 × 5,320.20
  4. Step 4: Simplify right side
    5,492.52x = 40,328,605.66
  5. Step 5: Solve for x
    x = 40,328,605.66/5,492.52
  6. Step 6: Final answer
    x = 7,342.46

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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.