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Finding the Fourth Proportional to 66,743.04, 92,115.74 and 38,062.76

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Solution

The fourth proportional to 66,743.04, 92,115.74 and 38,062.76 is: 52,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,743.04 : 92,115.74 = 38,062.76 : x
  2. Step 2: Convert to fraction form
    66,743.04/92,115.74 = 38,062.76/x
  3. Step 3: Cross multiply
    66,743.04x = 92,115.74 × 38,062.76
  4. Step 4: Simplify right side
    66,743.04x = 3,506,178,652.95
  5. Step 5: Solve for x
    x = 3,506,178,652.95/66,743.04
  6. Step 6: Final answer
    x = 52,532.50

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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.