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Finding the Fourth Proportional to 56,610.80, 84,916.20 and 23,319.80

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Solution

The fourth proportional to 56,610.80, 84,916.20 and 23,319.80 is: 34,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,610.80 : 84,916.20 = 23,319.80 : x
  2. Step 2: Convert to fraction form
    56,610.80/84,916.20 = 23,319.80/x
  3. Step 3: Cross multiply
    56,610.80x = 84,916.20 × 23,319.80
  4. Step 4: Simplify right side
    56,610.80x = 1,980,228,800.76
  5. Step 5: Solve for x
    x = 1,980,228,800.76/56,610.80
  6. Step 6: Final answer
    x = 34,979.70

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1.5x scale

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.