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Finding the Fourth Proportional to 66,686.70, 93,516.90 and 66,686.70

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Solution

The fourth proportional to 66,686.70, 93,516.90 and 66,686.70 is: 93,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,686.70 : 93,516.90 = 66,686.70 : x
  2. Step 2: Convert to fraction form
    66,686.70/93,516.90 = 66,686.70/x
  3. Step 3: Cross multiply
    66,686.70x = 93,516.90 × 66,686.70
  4. Step 4: Simplify right side
    66,686.70x = 6,236,333,455.23
  5. Step 5: Solve for x
    x = 6,236,333,455.23/66,686.70
  6. Step 6: Final answer
    x = 93,516.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.