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Finding the Fourth Proportional to 55,611.63, 83,368.59 and 28,901.40

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Solution

The fourth proportional to 55,611.63, 83,368.59 and 28,901.40 is: 43,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,611.63 : 83,368.59 = 28,901.40 : x
  2. Step 2: Convert to fraction form
    55,611.63/83,368.59 = 28,901.40/x
  3. Step 3: Cross multiply
    55,611.63x = 83,368.59 × 28,901.40
  4. Step 4: Simplify right side
    55,611.63x = 2,409,468,967.03
  5. Step 5: Solve for x
    x = 2,409,468,967.03/55,611.63
  6. Step 6: Final answer
    x = 43,326.71

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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.