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Finding the Fourth Proportional to 68,732.40, 96,018 and 68,732.40

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Solution

The fourth proportional to 68,732.40, 96,018 and 68,732.40 is: 96,018

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,732.40 : 96,018 = 68,732.40 : x
  2. Step 2: Convert to fraction form
    68,732.40/96,018 = 68,732.40/x
  3. Step 3: Cross multiply
    68,732.40x = 96,018 × 68,732.40
  4. Step 4: Simplify right side
    68,732.40x = 6,599,547,583.20
  5. Step 5: Solve for x
    x = 6,599,547,583.20/68,732.40
  6. Step 6: Final answer
    x = 96,018

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.