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Finding the Fourth Proportional to 64,866.96, 97,303.34 and 19,885.08

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Solution

The fourth proportional to 64,866.96, 97,303.34 and 19,885.08 is: 29,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.96 : 97,303.34 = 19,885.08 : x
  2. Step 2: Convert to fraction form
    64,866.96/97,303.34 = 19,885.08/x
  3. Step 3: Cross multiply
    64,866.96x = 97,303.34 × 19,885.08
  4. Step 4: Simplify right side
    64,866.96x = 1,934,884,600.74
  5. Step 5: Solve for x
    x = 1,934,884,600.74/64,866.96
  6. Step 6: Final answer
    x = 29,828.51

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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.