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Finding the Fourth Proportional to 10,915,228.80, 16,341,350.40 and 10,915,228.80

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Solution

The fourth proportional to 10,915,228.80, 16,341,350.40 and 10,915,228.80 is: 16,341,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915,228.80 : 16,341,350.40 = 10,915,228.80 : x
  2. Step 2: Convert to fraction form
    10,915,228.80/16,341,350.40 = 10,915,228.80/x
  3. Step 3: Cross multiply
    10,915,228.80x = 16,341,350.40 × 10,915,228.80
  4. Step 4: Simplify right side
    10,915,228.80x = 178,369,578,516,971.53
  5. Step 5: Solve for x
    x = 178,369,578,516,971.53/10,915,228.80
  6. Step 6: Final answer
    x = 16,341,350.40

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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.