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Finding the Fourth Proportional to 7,135.70, 10,703.55 and 4,802.90

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Solution

The fourth proportional to 7,135.70, 10,703.55 and 4,802.90 is: 7,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.70 : 10,703.55 = 4,802.90 : x
  2. Step 2: Convert to fraction form
    7,135.70/10,703.55 = 4,802.90/x
  3. Step 3: Cross multiply
    7,135.70x = 10,703.55 × 4,802.90
  4. Step 4: Simplify right side
    7,135.70x = 51,408,080.30
  5. Step 5: Solve for x
    x = 51,408,080.30/7,135.70
  6. Step 6: Final answer
    x = 7,204.35

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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.