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Finding the Fourth Proportional to 91,937.52, 126,886.57 and 51,654.40

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Solution

The fourth proportional to 91,937.52, 126,886.57 and 51,654.40 is: 71,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937.52 : 126,886.57 = 51,654.40 : x
  2. Step 2: Convert to fraction form
    91,937.52/126,886.57 = 51,654.40/x
  3. Step 3: Cross multiply
    91,937.52x = 126,886.57 × 51,654.40
  4. Step 4: Simplify right side
    91,937.52x = 6,554,249,195.06
  5. Step 5: Solve for x
    x = 6,554,249,195.06/91,937.52
  6. Step 6: Final answer
    x = 71,290.25

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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.