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Finding the Fourth Proportional to 66,901.32, 92,319.84 and 38,224.08

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Solution

The fourth proportional to 66,901.32, 92,319.84 and 38,224.08 is: 52,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,901.32 : 92,319.84 = 38,224.08 : x
  2. Step 2: Convert to fraction form
    66,901.32/92,319.84 = 38,224.08/x
  3. Step 3: Cross multiply
    66,901.32x = 92,319.84 × 38,224.08
  4. Step 4: Simplify right side
    66,901.32x = 3,528,840,949.75
  5. Step 5: Solve for x
    x = 3,528,840,949.75/66,901.32
  6. Step 6: Final answer
    x = 52,746.96

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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.