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Finding the Fourth Proportional to 7,884,967.60, 11,827,451.40 and 7,884,967.60

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Solution

The fourth proportional to 7,884,967.60, 11,827,451.40 and 7,884,967.60 is: 11,827,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884,967.60 : 11,827,451.40 = 7,884,967.60 : x
  2. Step 2: Convert to fraction form
    7,884,967.60/11,827,451.40 = 7,884,967.60/x
  3. Step 3: Cross multiply
    7,884,967.60x = 11,827,451.40 × 7,884,967.60
  4. Step 4: Simplify right side
    7,884,967.60x = 93,259,071,079,574.64
  5. Step 5: Solve for x
    x = 93,259,071,079,574.64/7,884,967.60
  6. Step 6: Final answer
    x = 11,827,451.40

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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.