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Finding the Fourth Proportional to 64,488.74, 88,993.20 and 35,806.93

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Solution

The fourth proportional to 64,488.74, 88,993.20 and 35,806.93 is: 49,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,488.74 : 88,993.20 = 35,806.93 : x
  2. Step 2: Convert to fraction form
    64,488.74/88,993.20 = 35,806.93/x
  3. Step 3: Cross multiply
    64,488.74x = 88,993.20 × 35,806.93
  4. Step 4: Simplify right side
    64,488.74x = 3,186,573,060.39
  5. Step 5: Solve for x
    x = 3,186,573,060.39/64,488.74
  6. Step 6: Final answer
    x = 49,412.86

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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.