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Finding the Fourth Proportional to 28,681,011.90, 40,183,276.50 and 28,681,011.90

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Solution

The fourth proportional to 28,681,011.90, 40,183,276.50 and 28,681,011.90 is: 40,183,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681,011.90 : 40,183,276.50 = 28,681,011.90 : x
  2. Step 2: Convert to fraction form
    28,681,011.90/40,183,276.50 = 28,681,011.90/x
  3. Step 3: Cross multiply
    28,681,011.90x = 40,183,276.50 × 28,681,011.90
  4. Step 4: Simplify right side
    28,681,011.90x = 1,152,497,031,477,490.25
  5. Step 5: Solve for x
    x = 1,152,497,031,477,490.25/28,681,011.90
  6. Step 6: Final answer
    x = 40,183,276.50

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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.