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Finding the Fourth Proportional to 56,612.80, 78,130.02 and 33,952.65

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Solution

The fourth proportional to 56,612.80, 78,130.02 and 33,952.65 is: 46,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,612.80 : 78,130.02 = 33,952.65 : x
  2. Step 2: Convert to fraction form
    56,612.80/78,130.02 = 33,952.65/x
  3. Step 3: Cross multiply
    56,612.80x = 78,130.02 × 33,952.65
  4. Step 4: Simplify right side
    56,612.80x = 2,652,721,223.55
  5. Step 5: Solve for x
    x = 2,652,721,223.55/56,612.80
  6. Step 6: Final answer
    x = 46,857.27

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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.