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Finding the Fourth Proportional to 64,907.90, 97,387.45 and 25,458.30

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Solution

The fourth proportional to 64,907.90, 97,387.45 and 25,458.30 is: 38,197.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907.90 : 97,387.45 = 25,458.30 : x
  2. Step 2: Convert to fraction form
    64,907.90/97,387.45 = 25,458.30/x
  3. Step 3: Cross multiply
    64,907.90x = 97,387.45 × 25,458.30
  4. Step 4: Simplify right side
    64,907.90x = 2,479,318,918.34
  5. Step 5: Solve for x
    x = 2,479,318,918.34/64,907.90
  6. Step 6: Final answer
    x = 38,197.49

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1.5x scale

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.