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Finding the Fourth Proportional to 52,425.71, 78,560.78 and 38,506.67

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Solution

The fourth proportional to 52,425.71, 78,560.78 and 38,506.67 is: 57,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,425.71 : 78,560.78 = 38,506.67 : x
  2. Step 2: Convert to fraction form
    52,425.71/78,560.78 = 38,506.67/x
  3. Step 3: Cross multiply
    52,425.71x = 78,560.78 × 38,506.67
  4. Step 4: Simplify right side
    52,425.71x = 3,025,113,445.07
  5. Step 5: Solve for x
    x = 3,025,113,445.07/52,425.71
  6. Step 6: Final answer
    x = 57,702.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.