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Finding the Fourth Proportional to 17,581,639.60, 26,372,459.40 and 17,266,711.60

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Solution

The fourth proportional to 17,581,639.60, 26,372,459.40 and 17,266,711.60 is: 25,900,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,581,639.60 : 26,372,459.40 = 17,266,711.60 : x
  2. Step 2: Convert to fraction form
    17,581,639.60/26,372,459.40 = 17,266,711.60/x
  3. Step 3: Cross multiply
    17,581,639.60x = 26,372,459.40 × 17,266,711.60
  4. Step 4: Simplify right side
    17,581,639.60x = 455,365,650,642,509.06
  5. Step 5: Solve for x
    x = 455,365,650,642,509.06/17,581,639.60
  6. Step 6: Final answer
    x = 25,900,067.40

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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.