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Finding the Fourth Proportional to 19,300.40, 28,907.40 and 14,903.60

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Solution

The fourth proportional to 19,300.40, 28,907.40 and 14,903.60 is: 22,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.40 : 28,907.40 = 14,903.60 : x
  2. Step 2: Convert to fraction form
    19,300.40/28,907.40 = 14,903.60/x
  3. Step 3: Cross multiply
    19,300.40x = 28,907.40 × 14,903.60
  4. Step 4: Simplify right side
    19,300.40x = 430,824,326.64
  5. Step 5: Solve for x
    x = 430,824,326.64/19,300.40
  6. Step 6: Final answer
    x = 22,322.04

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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.