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Finding the Fourth Proportional to 55,054.80, 75,971.88 and 29,903.76

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Solution

The fourth proportional to 55,054.80, 75,971.88 and 29,903.76 is: 41,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,054.80 : 75,971.88 = 29,903.76 : x
  2. Step 2: Convert to fraction form
    55,054.80/75,971.88 = 29,903.76/x
  3. Step 3: Cross multiply
    55,054.80x = 75,971.88 × 29,903.76
  4. Step 4: Simplify right side
    55,054.80x = 2,271,844,866.27
  5. Step 5: Solve for x
    x = 2,271,844,866.27/55,054.80
  6. Step 6: Final answer
    x = 41,265.16

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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.