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Finding the Fourth Proportional to 56,491.52, 77,958.06 and 31,341.02

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Solution

The fourth proportional to 56,491.52, 77,958.06 and 31,341.02 is: 43,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.52 : 77,958.06 = 31,341.02 : x
  2. Step 2: Convert to fraction form
    56,491.52/77,958.06 = 31,341.02/x
  3. Step 3: Cross multiply
    56,491.52x = 77,958.06 × 31,341.02
  4. Step 4: Simplify right side
    56,491.52x = 2,443,285,117.62
  5. Step 5: Solve for x
    x = 2,443,285,117.62/56,491.52
  6. Step 6: Final answer
    x = 43,250.48

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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.