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Finding the Fourth Proportional to 68,543.39, 94,598.69 and 38,330.40

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Solution

The fourth proportional to 68,543.39, 94,598.69 and 38,330.40 is: 52,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,543.39 : 94,598.69 = 38,330.40 : x
  2. Step 2: Convert to fraction form
    68,543.39/94,598.69 = 38,330.40/x
  3. Step 3: Cross multiply
    68,543.39x = 94,598.69 × 38,330.40
  4. Step 4: Simplify right side
    68,543.39x = 3,626,005,435.52
  5. Step 5: Solve for x
    x = 3,626,005,435.52/68,543.39
  6. Step 6: Final answer
    x = 52,900.88

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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.