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Finding the Fourth Proportional to 5,220.95, 7,319.05 and 5,220.95

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Solution

The fourth proportional to 5,220.95, 7,319.05 and 5,220.95 is: 7,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.95 : 7,319.05 = 5,220.95 : x
  2. Step 2: Convert to fraction form
    5,220.95/7,319.05 = 5,220.95/x
  3. Step 3: Cross multiply
    5,220.95x = 7,319.05 × 5,220.95
  4. Step 4: Simplify right side
    5,220.95x = 38,212,394.10
  5. Step 5: Solve for x
    x = 38,212,394.10/5,220.95
  6. Step 6: Final answer
    x = 7,319.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.