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Finding the Fourth Proportional to 56,885.66, 78,501.66 and 31,392.26

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Solution

The fourth proportional to 56,885.66, 78,501.66 and 31,392.26 is: 43,321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,885.66 : 78,501.66 = 31,392.26 : x
  2. Step 2: Convert to fraction form
    56,885.66/78,501.66 = 31,392.26/x
  3. Step 3: Cross multiply
    56,885.66x = 78,501.66 × 31,392.26
  4. Step 4: Simplify right side
    56,885.66x = 2,464,344,521.15
  5. Step 5: Solve for x
    x = 2,464,344,521.15/56,885.66
  6. Step 6: Final answer
    x = 43,321.01

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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.