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Finding the Fourth Proportional to 64,975.52, 89,666.25 and 35,167.52

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Solution

The fourth proportional to 64,975.52, 89,666.25 and 35,167.52 is: 48,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,975.52 : 89,666.25 = 35,167.52 : x
  2. Step 2: Convert to fraction form
    64,975.52/89,666.25 = 35,167.52/x
  3. Step 3: Cross multiply
    64,975.52x = 89,666.25 × 35,167.52
  4. Step 4: Simplify right side
    64,975.52x = 3,153,339,640.20
  5. Step 5: Solve for x
    x = 3,153,339,640.20/64,975.52
  6. Step 6: Final answer
    x = 48,531.20

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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.