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Finding the Fourth Proportional to 64,453.95, 88,989.81 and 49,319.58

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Solution

The fourth proportional to 64,453.95, 88,989.81 and 49,319.58 is: 68,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,453.95 : 88,989.81 = 49,319.58 : x
  2. Step 2: Convert to fraction form
    64,453.95/88,989.81 = 49,319.58/x
  3. Step 3: Cross multiply
    64,453.95x = 88,989.81 × 49,319.58
  4. Step 4: Simplify right side
    64,453.95x = 4,388,940,053.48
  5. Step 5: Solve for x
    x = 4,388,940,053.48/64,453.95
  6. Step 6: Final answer
    x = 68,094.20

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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.