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Finding the Fourth Proportional to 66,018.68, 91,106.24 and 35,804.16

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Solution

The fourth proportional to 66,018.68, 91,106.24 and 35,804.16 is: 49,409.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.68 : 91,106.24 = 35,804.16 : x
  2. Step 2: Convert to fraction form
    66,018.68/91,106.24 = 35,804.16/x
  3. Step 3: Cross multiply
    66,018.68x = 91,106.24 × 35,804.16
  4. Step 4: Simplify right side
    66,018.68x = 3,261,982,393.96
  5. Step 5: Solve for x
    x = 3,261,982,393.96/66,018.68
  6. Step 6: Final answer
    x = 49,409.99

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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.