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Finding the Fourth Proportional to 66,798.35, 92,244.15 and 42,966.39

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Solution

The fourth proportional to 66,798.35, 92,244.15 and 42,966.39 is: 59,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798.35 : 92,244.15 = 42,966.39 : x
  2. Step 2: Convert to fraction form
    66,798.35/92,244.15 = 42,966.39/x
  3. Step 3: Cross multiply
    66,798.35x = 92,244.15 × 42,966.39
  4. Step 4: Simplify right side
    66,798.35x = 3,963,398,124.12
  5. Step 5: Solve for x
    x = 3,963,398,124.12/66,798.35
  6. Step 6: Final answer
    x = 59,333.78

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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.