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Finding the Fourth Proportional to 66,705.66, 92,058.80 and 38,026.00

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Solution

The fourth proportional to 66,705.66, 92,058.80 and 38,026.00 is: 52,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,705.66 : 92,058.80 = 38,026.00 : x
  2. Step 2: Convert to fraction form
    66,705.66/92,058.80 = 38,026.00/x
  3. Step 3: Cross multiply
    66,705.66x = 92,058.80 × 38,026.00
  4. Step 4: Simplify right side
    66,705.66x = 3,500,628,138.94
  5. Step 5: Solve for x
    x = 3,500,628,138.94/66,705.66
  6. Step 6: Final answer
    x = 52,478.73

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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.