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Finding the Fourth Proportional to 64,813.70, 97,220.55 and 36,820.10

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Solution

The fourth proportional to 64,813.70, 97,220.55 and 36,820.10 is: 55,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813.70 : 97,220.55 = 36,820.10 : x
  2. Step 2: Convert to fraction form
    64,813.70/97,220.55 = 36,820.10/x
  3. Step 3: Cross multiply
    64,813.70x = 97,220.55 × 36,820.10
  4. Step 4: Simplify right side
    64,813.70x = 3,579,670,373.06
  5. Step 5: Solve for x
    x = 3,579,670,373.06/64,813.70
  6. Step 6: Final answer
    x = 55,230.15

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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.