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Finding the Fourth Proportional to 60,612.20, 90,918.30 and 34,368.20

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Solution

The fourth proportional to 60,612.20, 90,918.30 and 34,368.20 is: 51,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,612.20 : 90,918.30 = 34,368.20 : x
  2. Step 2: Convert to fraction form
    60,612.20/90,918.30 = 34,368.20/x
  3. Step 3: Cross multiply
    60,612.20x = 90,918.30 × 34,368.20
  4. Step 4: Simplify right side
    60,612.20x = 3,124,698,318.06
  5. Step 5: Solve for x
    x = 3,124,698,318.06/60,612.20
  6. Step 6: Final answer
    x = 51,552.30

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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.