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Finding the Fourth Proportional to 55,775.70, 76,919.04 and 37,897.38

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Solution

The fourth proportional to 55,775.70, 76,919.04 and 37,897.38 is: 52,263.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.70 : 76,919.04 = 37,897.38 : x
  2. Step 2: Convert to fraction form
    55,775.70/76,919.04 = 37,897.38/x
  3. Step 3: Cross multiply
    55,775.70x = 76,919.04 × 37,897.38
  4. Step 4: Simplify right side
    55,775.70x = 2,915,030,088.12
  5. Step 5: Solve for x
    x = 2,915,030,088.12/55,775.70
  6. Step 6: Final answer
    x = 52,263.44

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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.