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Finding the Fourth Proportional to 25,457.70, 35,123.67 and 14,701.20

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Solution

The fourth proportional to 25,457.70, 35,123.67 and 14,701.20 is: 20,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.70 : 35,123.67 = 14,701.20 : x
  2. Step 2: Convert to fraction form
    25,457.70/35,123.67 = 14,701.20/x
  3. Step 3: Cross multiply
    25,457.70x = 35,123.67 × 14,701.20
  4. Step 4: Simplify right side
    25,457.70x = 516,360,097.40
  5. Step 5: Solve for x
    x = 516,360,097.40/25,457.70
  6. Step 6: Final answer
    x = 20,283.06

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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.