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Finding the Fourth Proportional to 60,612.70, 90,919.05 and 34,368.70

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Solution

The fourth proportional to 60,612.70, 90,919.05 and 34,368.70 is: 51,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,612.70 : 90,919.05 = 34,368.70 : x
  2. Step 2: Convert to fraction form
    60,612.70/90,919.05 = 34,368.70/x
  3. Step 3: Cross multiply
    60,612.70x = 90,919.05 × 34,368.70
  4. Step 4: Simplify right side
    60,612.70x = 3,124,769,553.74
  5. Step 5: Solve for x
    x = 3,124,769,553.74/60,612.70
  6. Step 6: Final answer
    x = 51,553.05

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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.