Home / 66,411.47-91,637.30-37,334.09

Finding the Fourth Proportional to 66,411.47, 91,637.30 and 37,334.09

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Solution

The fourth proportional to 66,411.47, 91,637.30 and 37,334.09 is: 51,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.47 : 91,637.30 = 37,334.09 : x
  2. Step 2: Convert to fraction form
    66,411.47/91,637.30 = 37,334.09/x
  3. Step 3: Cross multiply
    66,411.47x = 91,637.30 × 37,334.09
  4. Step 4: Simplify right side
    66,411.47x = 3,421,195,205.56
  5. Step 5: Solve for x
    x = 3,421,195,205.56/66,411.47
  6. Step 6: Final answer
    x = 51,515.13

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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.