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Finding the Fourth Proportional to 71,203.52, 98,256.93 and 39,370.32

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Solution

The fourth proportional to 71,203.52, 98,256.93 and 39,370.32 is: 54,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.52 : 98,256.93 = 39,370.32 : x
  2. Step 2: Convert to fraction form
    71,203.52/98,256.93 = 39,370.32/x
  3. Step 3: Cross multiply
    71,203.52x = 98,256.93 × 39,370.32
  4. Step 4: Simplify right side
    71,203.52x = 3,868,406,776.32
  5. Step 5: Solve for x
    x = 3,868,406,776.32/71,203.52
  6. Step 6: Final answer
    x = 54,328.87

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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.