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Finding the Fourth Proportional to 66,419.04, 99,657.72 and 35,256.72

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Solution

The fourth proportional to 66,419.04, 99,657.72 and 35,256.72 is: 52,900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,419.04 : 99,657.72 = 35,256.72 : x
  2. Step 2: Convert to fraction form
    66,419.04/99,657.72 = 35,256.72/x
  3. Step 3: Cross multiply
    66,419.04x = 99,657.72 × 35,256.72
  4. Step 4: Simplify right side
    66,419.04x = 3,513,604,329.88
  5. Step 5: Solve for x
    x = 3,513,604,329.88/66,419.04
  6. Step 6: Final answer
    x = 52,900.56

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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.