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Finding the Fourth Proportional to 73,482.42, 101,405.26 and 39,948.42

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Solution

The fourth proportional to 73,482.42, 101,405.26 and 39,948.42 is: 55,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,482.42 : 101,405.26 = 39,948.42 : x
  2. Step 2: Convert to fraction form
    73,482.42/101,405.26 = 39,948.42/x
  3. Step 3: Cross multiply
    73,482.42x = 101,405.26 × 39,948.42
  4. Step 4: Simplify right side
    73,482.42x = 4,050,979,916.69
  5. Step 5: Solve for x
    x = 4,050,979,916.69/73,482.42
  6. Step 6: Final answer
    x = 55,128.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.