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Finding the Fourth Proportional to 35,130.40, 48,478.94 and 19,214.50

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Solution

The fourth proportional to 35,130.40, 48,478.94 and 19,214.50 is: 26,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,130.40 : 48,478.94 = 19,214.50 : x
  2. Step 2: Convert to fraction form
    35,130.40/48,478.94 = 19,214.50/x
  3. Step 3: Cross multiply
    35,130.40x = 48,478.94 × 19,214.50
  4. Step 4: Simplify right side
    35,130.40x = 931,498,592.63
  5. Step 5: Solve for x
    x = 931,498,592.63/35,130.40
  6. Step 6: Final answer
    x = 26,515.46

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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.