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Finding the Fourth Proportional to 66,421.70, 93,059.50 and 66,421.70

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Solution

The fourth proportional to 66,421.70, 93,059.50 and 66,421.70 is: 93,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.70 : 93,059.50 = 66,421.70 : x
  2. Step 2: Convert to fraction form
    66,421.70/93,059.50 = 66,421.70/x
  3. Step 3: Cross multiply
    66,421.70x = 93,059.50 × 66,421.70
  4. Step 4: Simplify right side
    66,421.70x = 6,181,170,191.15
  5. Step 5: Solve for x
    x = 6,181,170,191.15/66,421.70
  6. Step 6: Final answer
    x = 93,059.50

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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.