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Finding the Fourth Proportional to 46,810.80, 70,216.20 and 42,145.20

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Solution

The fourth proportional to 46,810.80, 70,216.20 and 42,145.20 is: 63,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,810.80 : 70,216.20 = 42,145.20 : x
  2. Step 2: Convert to fraction form
    46,810.80/70,216.20 = 42,145.20/x
  3. Step 3: Cross multiply
    46,810.80x = 70,216.20 × 42,145.20
  4. Step 4: Simplify right side
    46,810.80x = 2,959,275,792.24
  5. Step 5: Solve for x
    x = 2,959,275,792.24/46,810.80
  6. Step 6: Final answer
    x = 63,217.80

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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.