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Finding the Fourth Proportional to 7,808.76, 10,770.45 and 4,973.34

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Solution

The fourth proportional to 7,808.76, 10,770.45 and 4,973.34 is: 6,859.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.76 : 10,770.45 = 4,973.34 : x
  2. Step 2: Convert to fraction form
    7,808.76/10,770.45 = 4,973.34/x
  3. Step 3: Cross multiply
    7,808.76x = 10,770.45 × 4,973.34
  4. Step 4: Simplify right side
    7,808.76x = 53,565,109.80
  5. Step 5: Solve for x
    x = 53,565,109.80/7,808.76
  6. Step 6: Final answer
    x = 6,859.62

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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.