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Finding the Fourth Proportional to 56,483.88, 77,951 and 34,135.08

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Solution

The fourth proportional to 56,483.88, 77,951 and 34,135.08 is: 47,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,483.88 : 77,951 = 34,135.08 : x
  2. Step 2: Convert to fraction form
    56,483.88/77,951 = 34,135.08/x
  3. Step 3: Cross multiply
    56,483.88x = 77,951 × 34,135.08
  4. Step 4: Simplify right side
    56,483.88x = 2,660,863,621.08
  5. Step 5: Solve for x
    x = 2,660,863,621.08/56,483.88
  6. Step 6: Final answer
    x = 47,108.37

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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.