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Finding the Fourth Proportional to 64,143.78, 88,518.54 and 35,849.46

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Solution

The fourth proportional to 64,143.78, 88,518.54 and 35,849.46 is: 49,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,143.78 : 88,518.54 = 35,849.46 : x
  2. Step 2: Convert to fraction form
    64,143.78/88,518.54 = 35,849.46/x
  3. Step 3: Cross multiply
    64,143.78x = 88,518.54 × 35,849.46
  4. Step 4: Simplify right side
    64,143.78x = 3,173,341,858.99
  5. Step 5: Solve for x
    x = 3,173,341,858.99/64,143.78
  6. Step 6: Final answer
    x = 49,472.32

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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.