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Finding the Fourth Proportional to 65,873.01, 98,907.93 and 64,888.86

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Solution

The fourth proportional to 65,873.01, 98,907.93 and 64,888.86 is: 97,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873.01 : 98,907.93 = 64,888.86 : x
  2. Step 2: Convert to fraction form
    65,873.01/98,907.93 = 64,888.86/x
  3. Step 3: Cross multiply
    65,873.01x = 98,907.93 × 64,888.86
  4. Step 4: Simplify right side
    65,873.01x = 6,418,022,822.66
  5. Step 5: Solve for x
    x = 6,418,022,822.66/65,873.01
  6. Step 6: Final answer
    x = 97,430.23

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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.