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Finding the Fourth Proportional to 55,510.70, 83,266.05 and 51,792.80

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Solution

The fourth proportional to 55,510.70, 83,266.05 and 51,792.80 is: 77,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,510.70 : 83,266.05 = 51,792.80 : x
  2. Step 2: Convert to fraction form
    55,510.70/83,266.05 = 51,792.80/x
  3. Step 3: Cross multiply
    55,510.70x = 83,266.05 × 51,792.80
  4. Step 4: Simplify right side
    55,510.70x = 4,312,581,874.44
  5. Step 5: Solve for x
    x = 4,312,581,874.44/55,510.70
  6. Step 6: Final answer
    x = 77,689.20

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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.