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Finding the Fourth Proportional to 55,934.60, 83,901.90 and 51,657.80

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Solution

The fourth proportional to 55,934.60, 83,901.90 and 51,657.80 is: 77,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,934.60 : 83,901.90 = 51,657.80 : x
  2. Step 2: Convert to fraction form
    55,934.60/83,901.90 = 51,657.80/x
  3. Step 3: Cross multiply
    55,934.60x = 83,901.90 × 51,657.80
  4. Step 4: Simplify right side
    55,934.60x = 4,334,187,569.82
  5. Step 5: Solve for x
    x = 4,334,187,569.82/55,934.60
  6. Step 6: Final answer
    x = 77,486.70

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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.