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Finding the Fourth Proportional to 5,087.30, 7,630.95 and 5,054.90

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Solution

The fourth proportional to 5,087.30, 7,630.95 and 5,054.90 is: 7,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.30 : 7,630.95 = 5,054.90 : x
  2. Step 2: Convert to fraction form
    5,087.30/7,630.95 = 5,054.90/x
  3. Step 3: Cross multiply
    5,087.30x = 7,630.95 × 5,054.90
  4. Step 4: Simplify right side
    5,087.30x = 38,573,689.16
  5. Step 5: Solve for x
    x = 38,573,689.16/5,087.30
  6. Step 6: Final answer
    x = 7,582.35

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Double scale
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Similar ratio
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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.