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Finding the Fourth Proportional to 66,309.12, 99,463.95 and 26,866.98

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Solution

The fourth proportional to 66,309.12, 99,463.95 and 26,866.98 is: 40,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.12 : 99,463.95 = 26,866.98 : x
  2. Step 2: Convert to fraction form
    66,309.12/99,463.95 = 26,866.98/x
  3. Step 3: Cross multiply
    66,309.12x = 99,463.95 × 26,866.98
  4. Step 4: Simplify right side
    66,309.12x = 2,672,295,955.37
  5. Step 5: Solve for x
    x = 2,672,295,955.37/66,309.12
  6. Step 6: Final answer
    x = 40,300.58

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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.