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Finding the Fourth Proportional to 66,799.84, 92,182.92 and 38,118.76

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Solution

The fourth proportional to 66,799.84, 92,182.92 and 38,118.76 is: 52,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,799.84 : 92,182.92 = 38,118.76 : x
  2. Step 2: Convert to fraction form
    66,799.84/92,182.92 = 38,118.76/x
  3. Step 3: Cross multiply
    66,799.84x = 92,182.92 × 38,118.76
  4. Step 4: Simplify right side
    66,799.84x = 3,513,898,603.58
  5. Step 5: Solve for x
    x = 3,513,898,603.58/66,799.84
  6. Step 6: Final answer
    x = 52,603.40

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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.