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Finding the Fourth Proportional to 64,826.88, 89,461.09 and 35,018.88

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Solution

The fourth proportional to 64,826.88, 89,461.09 and 35,018.88 is: 48,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,826.88 : 89,461.09 = 35,018.88 : x
  2. Step 2: Convert to fraction form
    64,826.88/89,461.09 = 35,018.88/x
  3. Step 3: Cross multiply
    64,826.88x = 89,461.09 × 35,018.88
  4. Step 4: Simplify right side
    64,826.88x = 3,132,827,175.38
  5. Step 5: Solve for x
    x = 3,132,827,175.38/64,826.88
  6. Step 6: Final answer
    x = 48,326.05

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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.