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Finding the Fourth Proportional to 55,894.76, 83,841.32 and 13,775.32

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Solution

The fourth proportional to 55,894.76, 83,841.32 and 13,775.32 is: 20,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,894.76 : 83,841.32 = 13,775.32 : x
  2. Step 2: Convert to fraction form
    55,894.76/83,841.32 = 13,775.32/x
  3. Step 3: Cross multiply
    55,894.76x = 83,841.32 × 13,775.32
  4. Step 4: Simplify right side
    55,894.76x = 1,154,941,012.22
  5. Step 5: Solve for x
    x = 1,154,941,012.22/55,894.76
  6. Step 6: Final answer
    x = 20,662.78

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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.