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Finding the Fourth Proportional to 56,164.88, 77,507.60 and 31,014.38

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Solution

The fourth proportional to 56,164.88, 77,507.60 and 31,014.38 is: 42,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,164.88 : 77,507.60 = 31,014.38 : x
  2. Step 2: Convert to fraction form
    56,164.88/77,507.60 = 31,014.38/x
  3. Step 3: Cross multiply
    56,164.88x = 77,507.60 × 31,014.38
  4. Step 4: Simplify right side
    56,164.88x = 2,403,849,616.68
  5. Step 5: Solve for x
    x = 2,403,849,616.68/56,164.88
  6. Step 6: Final answer
    x = 42,799.87

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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.