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Finding the Fourth Proportional to 12,600.81, 18,888.03 and 4,700.15

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Solution

The fourth proportional to 12,600.81, 18,888.03 and 4,700.15 is: 7,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,600.81 : 18,888.03 = 4,700.15 : x
  2. Step 2: Convert to fraction form
    12,600.81/18,888.03 = 4,700.15/x
  3. Step 3: Cross multiply
    12,600.81x = 18,888.03 × 4,700.15
  4. Step 4: Simplify right side
    12,600.81x = 88,776,550.59
  5. Step 5: Solve for x
    x = 88,776,550.59/12,600.81
  6. Step 6: Final answer
    x = 7,045.31

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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.