Home / 66,384.09-91,568.18-39,506.53

Finding the Fourth Proportional to 66,384.09, 91,568.18 and 39,506.53

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Solution

The fourth proportional to 66,384.09, 91,568.18 and 39,506.53 is: 54,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.09 : 91,568.18 = 39,506.53 : x
  2. Step 2: Convert to fraction form
    66,384.09/91,568.18 = 39,506.53/x
  3. Step 3: Cross multiply
    66,384.09x = 91,568.18 × 39,506.53
  4. Step 4: Simplify right side
    66,384.09x = 3,617,541,050.22
  5. Step 5: Solve for x
    x = 3,617,541,050.22/66,384.09
  6. Step 6: Final answer
    x = 54,494.10

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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.