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Finding the Fourth Proportional to 64,728.84, 97,060.80 and 37,719.93

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Solution

The fourth proportional to 64,728.84, 97,060.80 and 37,719.93 is: 56,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,728.84 : 97,060.80 = 37,719.93 : x
  2. Step 2: Convert to fraction form
    64,728.84/97,060.80 = 37,719.93/x
  3. Step 3: Cross multiply
    64,728.84x = 97,060.80 × 37,719.93
  4. Step 4: Simplify right side
    64,728.84x = 3,661,126,581.74
  5. Step 5: Solve for x
    x = 3,661,126,581.74/64,728.84
  6. Step 6: Final answer
    x = 56,560.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.