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Finding the Fourth Proportional to 56,607.80, 84,911.70 and 32,031.80

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Solution

The fourth proportional to 56,607.80, 84,911.70 and 32,031.80 is: 48,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,607.80 : 84,911.70 = 32,031.80 : x
  2. Step 2: Convert to fraction form
    56,607.80/84,911.70 = 32,031.80/x
  3. Step 3: Cross multiply
    56,607.80x = 84,911.70 × 32,031.80
  4. Step 4: Simplify right side
    56,607.80x = 2,719,874,592.06
  5. Step 5: Solve for x
    x = 2,719,874,592.06/56,607.80
  6. Step 6: Final answer
    x = 48,047.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.