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Finding the Fourth Proportional to 71,182.84, 98,223.69 and 39,347.32

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Solution

The fourth proportional to 71,182.84, 98,223.69 and 39,347.32 is: 54,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,182.84 : 98,223.69 = 39,347.32 : x
  2. Step 2: Convert to fraction form
    71,182.84/98,223.69 = 39,347.32/x
  3. Step 3: Cross multiply
    71,182.84x = 98,223.69 × 39,347.32
  4. Step 4: Simplify right side
    71,182.84x = 3,864,838,962.01
  5. Step 5: Solve for x
    x = 3,864,838,962.01/71,182.84
  6. Step 6: Final answer
    x = 54,294.53

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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.