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Finding the Fourth Proportional to 46,815.71, 70,223.56 and 20,515.01

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Solution

The fourth proportional to 46,815.71, 70,223.56 and 20,515.01 is: 30,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,815.71 : 70,223.56 = 20,515.01 : x
  2. Step 2: Convert to fraction form
    46,815.71/70,223.56 = 20,515.01/x
  3. Step 3: Cross multiply
    46,815.71x = 70,223.56 × 20,515.01
  4. Step 4: Simplify right side
    46,815.71x = 1,440,636,633.23
  5. Step 5: Solve for x
    x = 1,440,636,633.23/46,815.71
  6. Step 6: Final answer
    x = 30,772.51

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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.