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Finding the Fourth Proportional to 25,459.80, 35,140.50 and 14,851.32

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Solution

The fourth proportional to 25,459.80, 35,140.50 and 14,851.32 is: 20,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.80 : 35,140.50 = 14,851.32 : x
  2. Step 2: Convert to fraction form
    25,459.80/35,140.50 = 14,851.32/x
  3. Step 3: Cross multiply
    25,459.80x = 35,140.50 × 14,851.32
  4. Step 4: Simplify right side
    25,459.80x = 521,882,810.46
  5. Step 5: Solve for x
    x = 521,882,810.46/25,459.80
  6. Step 6: Final answer
    x = 20,498.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.