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Finding the Fourth Proportional to 64,575.51, 89,115.86 and 35,503.53

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Solution

The fourth proportional to 64,575.51, 89,115.86 and 35,503.53 is: 48,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.51 : 89,115.86 = 35,503.53 : x
  2. Step 2: Convert to fraction form
    64,575.51/89,115.86 = 35,503.53/x
  3. Step 3: Cross multiply
    64,575.51x = 89,115.86 × 35,503.53
  4. Step 4: Simplify right side
    64,575.51x = 3,163,927,431.47
  5. Step 5: Solve for x
    x = 3,163,927,431.47/64,575.51
  6. Step 6: Final answer
    x = 48,995.78

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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.