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Finding the Fourth Proportional to 66,205.60, 99,308.40 and 26,742.40

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Solution

The fourth proportional to 66,205.60, 99,308.40 and 26,742.40 is: 40,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,205.60 : 99,308.40 = 26,742.40 : x
  2. Step 2: Convert to fraction form
    66,205.60/99,308.40 = 26,742.40/x
  3. Step 3: Cross multiply
    66,205.60x = 99,308.40 × 26,742.40
  4. Step 4: Simplify right side
    66,205.60x = 2,655,744,956.16
  5. Step 5: Solve for x
    x = 2,655,744,956.16/66,205.60
  6. Step 6: Final answer
    x = 40,113.60

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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.