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Finding the Fourth Proportional to 53,903.40, 80,855.10 and 14,459.52

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Solution

The fourth proportional to 53,903.40, 80,855.10 and 14,459.52 is: 21,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,903.40 : 80,855.10 = 14,459.52 : x
  2. Step 2: Convert to fraction form
    53,903.40/80,855.10 = 14,459.52/x
  3. Step 3: Cross multiply
    53,903.40x = 80,855.10 × 14,459.52
  4. Step 4: Simplify right side
    53,903.40x = 1,169,125,935.55
  5. Step 5: Solve for x
    x = 1,169,125,935.55/53,903.40
  6. Step 6: Final answer
    x = 21,689.28

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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.