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Finding the Fourth Proportional to 64,424.65, 88,905.84 and 36,130.94

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Solution

The fourth proportional to 64,424.65, 88,905.84 and 36,130.94 is: 49,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424.65 : 88,905.84 = 36,130.94 : x
  2. Step 2: Convert to fraction form
    64,424.65/88,905.84 = 36,130.94/x
  3. Step 3: Cross multiply
    64,424.65x = 88,905.84 × 36,130.94
  4. Step 4: Simplify right side
    64,424.65x = 3,212,251,570.69
  5. Step 5: Solve for x
    x = 3,212,251,570.69/64,424.65
  6. Step 6: Final answer
    x = 49,860.60

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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.