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Finding the Fourth Proportional to 56,491.88, 77,962.04 and 34,143.08

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Solution

The fourth proportional to 56,491.88, 77,962.04 and 34,143.08 is: 47,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.88 : 77,962.04 = 34,143.08 : x
  2. Step 2: Convert to fraction form
    56,491.88/77,962.04 = 34,143.08/x
  3. Step 3: Cross multiply
    56,491.88x = 77,962.04 × 34,143.08
  4. Step 4: Simplify right side
    56,491.88x = 2,661,864,168.68
  5. Step 5: Solve for x
    x = 2,661,864,168.68/56,491.88
  6. Step 6: Final answer
    x = 47,119.41

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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.