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Finding the Fourth Proportional to 64,808.06, 89,435.13 and 35,000.06

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Solution

The fourth proportional to 64,808.06, 89,435.13 and 35,000.06 is: 48,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,808.06 : 89,435.13 = 35,000.06 : x
  2. Step 2: Convert to fraction form
    64,808.06/89,435.13 = 35,000.06/x
  3. Step 3: Cross multiply
    64,808.06x = 89,435.13 × 35,000.06
  4. Step 4: Simplify right side
    64,808.06x = 3,130,234,916.11
  5. Step 5: Solve for x
    x = 3,130,234,916.11/64,808.06
  6. Step 6: Final answer
    x = 48,300.09

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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.