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Finding the Fourth Proportional to 7,672.05, 10,587.51 and 4,485.51

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Solution

The fourth proportional to 7,672.05, 10,587.51 and 4,485.51 is: 6,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.05 : 10,587.51 = 4,485.51 : x
  2. Step 2: Convert to fraction form
    7,672.05/10,587.51 = 4,485.51/x
  3. Step 3: Cross multiply
    7,672.05x = 10,587.51 × 4,485.51
  4. Step 4: Simplify right side
    7,672.05x = 47,490,381.98
  5. Step 5: Solve for x
    x = 47,490,381.98/7,672.05
  6. Step 6: Final answer
    x = 6,190.05

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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.