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Finding the Fourth Proportional to 43,275.42, 64,921.03 and 19,901.25

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Solution

The fourth proportional to 43,275.42, 64,921.03 and 19,901.25 is: 29,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,275.42 : 64,921.03 = 19,901.25 : x
  2. Step 2: Convert to fraction form
    43,275.42/64,921.03 = 19,901.25/x
  3. Step 3: Cross multiply
    43,275.42x = 64,921.03 × 19,901.25
  4. Step 4: Simplify right side
    43,275.42x = 1,292,009,598.53
  5. Step 5: Solve for x
    x = 1,292,009,598.53/43,275.42
  6. Step 6: Final answer
    x = 29,855.51

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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.