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Finding the Fourth Proportional to 66,307.56, 99,488.70 and 26,854.62

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Solution

The fourth proportional to 66,307.56, 99,488.70 and 26,854.62 is: 40,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,307.56 : 99,488.70 = 26,854.62 : x
  2. Step 2: Convert to fraction form
    66,307.56/99,488.70 = 26,854.62/x
  3. Step 3: Cross multiply
    66,307.56x = 99,488.70 × 26,854.62
  4. Step 4: Simplify right side
    66,307.56x = 2,671,731,232.79
  5. Step 5: Solve for x
    x = 2,671,731,232.79/66,307.56
  6. Step 6: Final answer
    x = 40,293.01

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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.