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Finding the Fourth Proportional to 64,135.50, 88,507.55 and 35,454.71

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Solution

The fourth proportional to 64,135.50, 88,507.55 and 35,454.71 is: 48,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,135.50 : 88,507.55 = 35,454.71 : x
  2. Step 2: Convert to fraction form
    64,135.50/88,507.55 = 35,454.71/x
  3. Step 3: Cross multiply
    64,135.50x = 88,507.55 × 35,454.71
  4. Step 4: Simplify right side
    64,135.50x = 3,138,009,330.11
  5. Step 5: Solve for x
    x = 3,138,009,330.11/64,135.50
  6. Step 6: Final answer
    x = 48,927.81

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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.