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Finding the Fourth Proportional to 55,645.52, 83,468.28 and 14,089.28

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Solution

The fourth proportional to 55,645.52, 83,468.28 and 14,089.28 is: 21,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,645.52 : 83,468.28 = 14,089.28 : x
  2. Step 2: Convert to fraction form
    55,645.52/83,468.28 = 14,089.28/x
  3. Step 3: Cross multiply
    55,645.52x = 83,468.28 × 14,089.28
  4. Step 4: Simplify right side
    55,645.52x = 1,176,007,968.04
  5. Step 5: Solve for x
    x = 1,176,007,968.04/55,645.52
  6. Step 6: Final answer
    x = 21,133.92

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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.