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Finding the Fourth Proportional to 64,807.19, 89,433.92 and 34,999.19

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Solution

The fourth proportional to 64,807.19, 89,433.92 and 34,999.19 is: 48,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,807.19 : 89,433.92 = 34,999.19 : x
  2. Step 2: Convert to fraction form
    64,807.19/89,433.92 = 34,999.19/x
  3. Step 3: Cross multiply
    64,807.19x = 89,433.92 × 34,999.19
  4. Step 4: Simplify right side
    64,807.19x = 3,130,114,758.52
  5. Step 5: Solve for x
    x = 3,130,114,758.52/64,807.19
  6. Step 6: Final answer
    x = 48,298.88

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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.