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Finding the Fourth Proportional to 66,718.71, 92,071.05 and 36,503.67

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Solution

The fourth proportional to 66,718.71, 92,071.05 and 36,503.67 is: 50,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,718.71 : 92,071.05 = 36,503.67 : x
  2. Step 2: Convert to fraction form
    66,718.71/92,071.05 = 36,503.67/x
  3. Step 3: Cross multiply
    66,718.71x = 92,071.05 × 36,503.67
  4. Step 4: Simplify right side
    66,718.71x = 3,360,931,225.75
  5. Step 5: Solve for x
    x = 3,360,931,225.75/66,718.71
  6. Step 6: Final answer
    x = 50,374.64

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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.