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Finding the Fourth Proportional to 55,458.52, 83,148.82 and 19,426.16

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Solution

The fourth proportional to 55,458.52, 83,148.82 and 19,426.16 is: 29,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,458.52 : 83,148.82 = 19,426.16 : x
  2. Step 2: Convert to fraction form
    55,458.52/83,148.82 = 19,426.16/x
  3. Step 3: Cross multiply
    55,458.52x = 83,148.82 × 19,426.16
  4. Step 4: Simplify right side
    55,458.52x = 1,615,262,440.44
  5. Step 5: Solve for x
    x = 1,615,262,440.44/55,458.52
  6. Step 6: Final answer
    x = 29,125.60

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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.