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Finding the Fourth Proportional to 7,068.80, 10,590.40 and 5,763.20

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Solution

The fourth proportional to 7,068.80, 10,590.40 and 5,763.20 is: 8,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.80 : 10,590.40 = 5,763.20 : x
  2. Step 2: Convert to fraction form
    7,068.80/10,590.40 = 5,763.20/x
  3. Step 3: Cross multiply
    7,068.80x = 10,590.40 × 5,763.20
  4. Step 4: Simplify right side
    7,068.80x = 61,034,593.28
  5. Step 5: Solve for x
    x = 61,034,593.28/7,068.80
  6. Step 6: Final answer
    x = 8,634.36

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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.