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Finding the Fourth Proportional to 64,854.04, 97,248.25 and 19,861.98

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Solution

The fourth proportional to 64,854.04, 97,248.25 and 19,861.98 is: 29,782.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.04 : 97,248.25 = 19,861.98 : x
  2. Step 2: Convert to fraction form
    64,854.04/97,248.25 = 19,861.98/x
  3. Step 3: Cross multiply
    64,854.04x = 97,248.25 × 19,861.98
  4. Step 4: Simplify right side
    64,854.04x = 1,931,542,821.36
  5. Step 5: Solve for x
    x = 1,931,542,821.36/64,854.04
  6. Step 6: Final answer
    x = 29,782.92

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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.