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Finding the Fourth Proportional to 7,663.60, 10,574.98 and 4,305.88

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Solution

The fourth proportional to 7,663.60, 10,574.98 and 4,305.88 is: 5,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663.60 : 10,574.98 = 4,305.88 : x
  2. Step 2: Convert to fraction form
    7,663.60/10,574.98 = 4,305.88/x
  3. Step 3: Cross multiply
    7,663.60x = 10,574.98 × 4,305.88
  4. Step 4: Simplify right side
    7,663.60x = 45,534,594.88
  5. Step 5: Solve for x
    x = 45,534,594.88/7,663.60
  6. Step 6: Final answer
    x = 5,941.67

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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.