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Finding the Fourth Proportional to 19,486,569.60, 27,325,987.20 and 19,486,569.60

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Solution

The fourth proportional to 19,486,569.60, 27,325,987.20 and 19,486,569.60 is: 27,325,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,569.60 : 27,325,987.20 = 19,486,569.60 : x
  2. Step 2: Convert to fraction form
    19,486,569.60/27,325,987.20 = 19,486,569.60/x
  3. Step 3: Cross multiply
    19,486,569.60x = 27,325,987.20 × 19,486,569.60
  4. Step 4: Simplify right side
    19,486,569.60x = 532,489,751,461,509.12
  5. Step 5: Solve for x
    x = 532,489,751,461,509.12/19,486,569.60
  6. Step 6: Final answer
    x = 27,325,987.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.