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Finding the Fourth Proportional to 13,254,433.60, 19,853,656.80 and 13,254,433.60

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Solution

The fourth proportional to 13,254,433.60, 19,853,656.80 and 13,254,433.60 is: 19,853,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254,433.60 : 19,853,656.80 = 13,254,433.60 : x
  2. Step 2: Convert to fraction form
    13,254,433.60/19,853,656.80 = 13,254,433.60/x
  3. Step 3: Cross multiply
    13,254,433.60x = 19,853,656.80 × 13,254,433.60
  4. Step 4: Simplify right side
    13,254,433.60x = 263,148,975,772,788.47
  5. Step 5: Solve for x
    x = 263,148,975,772,788.47/13,254,433.60
  6. Step 6: Final answer
    x = 19,853,656.80

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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.