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Finding the Fourth Proportional to 28,681,016.40, 40,183,282.80 and 28,681,016.40

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Solution

The fourth proportional to 28,681,016.40, 40,183,282.80 and 28,681,016.40 is: 40,183,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681,016.40 : 40,183,282.80 = 28,681,016.40 : x
  2. Step 2: Convert to fraction form
    28,681,016.40/40,183,282.80 = 28,681,016.40/x
  3. Step 3: Cross multiply
    28,681,016.40x = 40,183,282.80 × 28,681,016.40
  4. Step 4: Simplify right side
    28,681,016.40x = 1,152,497,392,992,637.75
  5. Step 5: Solve for x
    x = 1,152,497,392,992,637.75/28,681,016.40
  6. Step 6: Final answer
    x = 40,183,282.80

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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.