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Finding the Fourth Proportional to 64,459.76, 88,955.15 and 35,779.95

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Solution

The fourth proportional to 64,459.76, 88,955.15 and 35,779.95 is: 49,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,459.76 : 88,955.15 = 35,779.95 : x
  2. Step 2: Convert to fraction form
    64,459.76/88,955.15 = 35,779.95/x
  3. Step 3: Cross multiply
    64,459.76x = 88,955.15 × 35,779.95
  4. Step 4: Simplify right side
    64,459.76x = 3,182,810,640.34
  5. Step 5: Solve for x
    x = 3,182,810,640.34/64,459.76
  6. Step 6: Final answer
    x = 49,376.71

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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.