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Finding the Fourth Proportional to 62,574.12, 93,859.56 and 21,021.12

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Solution

The fourth proportional to 62,574.12, 93,859.56 and 21,021.12 is: 31,531.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,574.12 : 93,859.56 = 21,021.12 : x
  2. Step 2: Convert to fraction form
    62,574.12/93,859.56 = 21,021.12/x
  3. Step 3: Cross multiply
    62,574.12x = 93,859.56 × 21,021.12
  4. Step 4: Simplify right side
    62,574.12x = 1,973,033,073.91
  5. Step 5: Solve for x
    x = 1,973,033,073.91/62,574.12
  6. Step 6: Final answer
    x = 31,531.14

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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.