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Finding the Fourth Proportional to 67,240.80, 92,804.40 and 38,962.08

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Solution

The fourth proportional to 67,240.80, 92,804.40 and 38,962.08 is: 53,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,240.80 : 92,804.40 = 38,962.08 : x
  2. Step 2: Convert to fraction form
    67,240.80/92,804.40 = 38,962.08/x
  3. Step 3: Cross multiply
    67,240.80x = 92,804.40 × 38,962.08
  4. Step 4: Simplify right side
    67,240.80x = 3,615,852,457.15
  5. Step 5: Solve for x
    x = 3,615,852,457.15/67,240.80
  6. Step 6: Final answer
    x = 53,774.68

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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.