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Finding the Fourth Proportional to 64,143.84, 88,514.68 and 35,461.78

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Solution

The fourth proportional to 64,143.84, 88,514.68 and 35,461.78 is: 48,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,143.84 : 88,514.68 = 35,461.78 : x
  2. Step 2: Convert to fraction form
    64,143.84/88,514.68 = 35,461.78/x
  3. Step 3: Cross multiply
    64,143.84x = 88,514.68 × 35,461.78
  4. Step 4: Simplify right side
    64,143.84x = 3,138,888,108.93
  5. Step 5: Solve for x
    x = 3,138,888,108.93/64,143.84
  6. Step 6: Final answer
    x = 48,935.14

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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.