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Finding the Fourth Proportional to 28,896,327.60, 43,344,491.40 and 11,869,220.40

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Solution

The fourth proportional to 28,896,327.60, 43,344,491.40 and 11,869,220.40 is: 17,803,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896,327.60 : 43,344,491.40 = 11,869,220.40 : x
  2. Step 2: Convert to fraction form
    28,896,327.60/43,344,491.40 = 11,869,220.40/x
  3. Step 3: Cross multiply
    28,896,327.60x = 43,344,491.40 × 11,869,220.40
  4. Step 4: Simplify right side
    28,896,327.60x = 514,465,321,552,504.56
  5. Step 5: Solve for x
    x = 514,465,321,552,504.56/28,896,327.60
  6. Step 6: Final answer
    x = 17,803,830.60

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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.