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Finding the Fourth Proportional to 66,833.79, 92,210.85 and 38,152.50

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Solution

The fourth proportional to 66,833.79, 92,210.85 and 38,152.50 is: 52,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,833.79 : 92,210.85 = 38,152.50 : x
  2. Step 2: Convert to fraction form
    66,833.79/92,210.85 = 38,152.50/x
  3. Step 3: Cross multiply
    66,833.79x = 92,210.85 × 38,152.50
  4. Step 4: Simplify right side
    66,833.79x = 3,518,074,454.63
  5. Step 5: Solve for x
    x = 3,518,074,454.63/66,833.79
  6. Step 6: Final answer
    x = 52,639.16

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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.